If the engine speed fluctuates enough to cause the Crankshaft Position ( CKP) sensor signal to vary, the Engine Control Module ( ECM) can determine that a misfire is occurring. 3M views 7 years ago Still having issues? Ask a. The vehicle may produce excess vibration, especially at lower RPM. How To Fix Cylinder Misfire - P0300, P0301, P0302, P0303, P0304, P0305, P0306. The P0303 code belongs to a series of diagnostic trouble codes starting from P0300 that refer to an engine misfire or incomplete combustion in one of the engine cylinders. Make sure to check for moisture in the spark plug tubes. from the terminal to the crankshaft sensor and its been cranking fine since (about two weeks ago). SOLVED: P0303 misfire p0171 p0325. This started around the same time the issue above started and it only happens after it starts - It never stalls or dies at idle in traffic or anything. SOLVED: Code p0303 came on in my nissan altima 2003. However, the code does indicate that the vehicle’s computer system has sensed an issue in at least one of the car’s cylinders. code p0300 >Nissan Altima Questions. Find out what you need to know about this trouble code. 1) replace fuel pump 2) replaced Spark plug 3) changed coil pack. Depending on the damage sustained by the cat (s), you can have code P0420/0430 (3-Way Cat Efficiency due to inability to store O2) or even choking the engine or backfiring and other cat-related problems. Code P0303 2002 Nissan Altima Sedan Description. P0303 Code Meaning, Causes, Symptoms, & Tech Notes (With …. Misfire detected on cylinder 3 P0303 Jump to Latest Follow 1 - 3 of 3 Posts B Ballack13 Registered Joined Dec 20, 2015 128 Posts Discussion Starter · #1 · Apr 25, 2020 Hello all, I got this error code, so after driving for a year. P0303 is one of the top 5 trouble codes for the Nissan Altima. Before you can diagnose P0303 in your car, you need to find the third cylinder. (Nissan Altima) P0300 Multiple Cylinder Misfire. P0303 is one of the top 5 trouble codes for the Nissan Altima. Today it threw a P0303 WITHOUT any major misfire symptoms or sluggishness. Still got misfiring at 3 and random misfiring on multiple. The next common scenario is having low or no engine compression on two engine cylinders and your Altima (Frontier, or Xterra) wont start. If your Nissan Altima has the P0303 trouble code, you should know that its about as common of a code as there is. The computer was putting out a P0303, a misfiring 3rd Cylinder. A code P0303 Nissan may mean that one or more of the following has happened: Faulty spark plug or wire Faulty coil (pack) Faulty oxygen sensor (s) Faulty fuel injector Burned exhaust valve Faulty catalytic converter (s) Running out of fuel Poor compression Defective computer. If the problem persists more tests need to be done to diagnose the problem. This page provides details on Emerson Information Technology Solutions, located at 3rd Floor, F-3 Tower, Landmark Plaza, Plot No. Este código DTC P0303 nos informa que, la computadora ECM (Engine Control Module) del vehículo ha detectado que uno de los cilindros del motor no está funcionando correctamente. Engine Code p0303 Means, Causes, Fixes (6. Code P0603 Nissan Tech Notes Start by charging the vehicles battery and clean terminal, once the battery is charged and the terminals are clean and secure, erase code. C-98, Sahibzada Ajit Singh Nagar, Phase 7, Industrial Area, Sahibzada Ajit Singh Nagar, Punjab 160055, India. Code P0303 Nissan Tech Notes The P0303 code means that cylinder #3 is misfiring or is randomly misfiring. I tooke it out of the fuel rail and cleaned it using a length of vac line, a large siringe, 2 wires with alagator clips on both ends, a 9V battery, and brake cleaner. I changed all 4 spark plugs after getting the P0303. You probably have a key that is starting to malfunction. Buy Nissan 14032-8J10A, Fuel Injection Plenum Gasket US: http://amzn. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Smell of unburned gas exiting the tail pipe. The p0303 code is an engine misfire code, where the cylinder is specifically misfiring on the third cylinder. P0303 2004 Nissan Altima Sedan Code. P0303: Cylinder #3 Misfire. co 👈=====Engine Code P0303 Saving Repair Part. I replaced the ignition coil, the code cleared, and the engine seemed fine. Buy Nissan 14032-8J10A, Fuel Injection Plenum Gasket US: http://amzn. When a misfire occurs, engine speed will fluctuate. The P0303 code belongs to a series of diagnostic trouble codes starting from P0300 that refer to an engine misfire or incomplete combustion in one of the engine cylinders. P0303 indicates that cylinder number 3 is experiencing misfires. In some cases, drivers may experience decreased fuel economy, fuel smell from exhaust, rough idling, or lack of power from the engine. Altima does not accelerate and it wont go more than 20MP. Use FIXD to scan your Nissan to verify P0300 is the only code present. This issue is unique to Model Year 2013-2018 Nissan Altima vehicles due to a. STEP 2: EXAMINE THE EXHAUST SYSTEM FOR DAMAGE AND LEAKS Pay close attention to the exhaust manifold, gaskets, and exhaust pipes pre-catalytic converter. How To Test Engine Compression (Nissan 2. Specifically, as noted by the code P0303, the #3 injector. What Does the P0303 Code. Diagnostic Code P0141: O2 Sensor Heater Circuit Malfunction. P0303 misfire p0171 p0325 Nissan Altima 2000 runs rough at times check engine light flashes Posted by candace carter on Dec 08, 2013 Want Answer 0 Clicking this will make more experts see the question and we will remind you when it gets answered. How To Fix It?>Codes P0303 And P1614 On Nissan Altima. The CEL come up immediately with the same codes. 5L V6 Ignition Coil Misfire - P0303 Cylinder 3 Misfire. If the engine speed fluctuates enough to cause the. Nissan Altima P0300: Meaning, Causes, + How to Fix. Then the idle shaking was gone. Bike repair shop MIG Super 4601B (Garage, near. I changed the spark plugs to 4 new ones at this time, and the condition seemed uneffected (still comes and goes seemingly at random). The error was gone until it appeared again a month later. Flag Add Your Answer Ad 1 Answer Thomas Perkins Level 3:. Get the details of 1 Nissan service centers in Mohali with their all essential information including. The code P030X (p0301-P0308) means that the cylinder number X misfires, or there is no combustion in that cylinder. Misfire detected on cylinder 3 P0303 Jump to Latest Follow 1 - 3 of 3 Posts B Ballack13 Registered Joined Dec 20, 2015 128 Posts Discussion Starter · #1 · Apr 25, 2020 Hello all, I got this error code, so after driving for a year. Nissan P0300 – Meaning, Causes, Symptoms, & Fixes. Today it threw a P0303 WITHOUT any major misfire symptoms or sluggishness. This issue is unique to Model Year 2013-2018 Nissan Altima vehicles due to a combination of the model frontend design, anti-corrosion limitations and location of the hood latch release in close proximity to the fuel door release. They were gapped properly out of the box, as I checked to make sure. Possible causes of OBD code P0303 Nissan. Look for loose engine ground wires as well. The P0303 code means that cylinder #3 is misfiring or is randomly misfiring. Started back to idle rough & check it engine light flashing when driving. The cost of diagnosing the P0303 2009 Nissan Altima Sedan code is 1. The cost to diagnose the P0303 2002 Nissan Altima Sedan code is 1. Now, a lot of times, low compression at idle, will only cause a Rough Idle Condition and it wont set a Misfire Trouble Code at all. Nissan Altima Model 2021, Droven 12000 km, white color, selling price 74500 dirhams. Nissan P0303 Number 3 Cylinder Misfire Detected. What Caused The p0303 code (Possible Symptoms)? When your engine misfires it will behave badly, and there are many different causes of misfiring in todays OBD-II engines. I replaced all plugs about 30k miles ago. Start by checking for intake leaks and if no leaks are. 90,000 2013 Altima 2. Intermittent Misfire 03 Altima, 2. What Does Nissan Altima Code P0303 Mean? P0303 definition: Cylinder 3 misfire detected. P0303 Cylinder #3 Misfire. If the code comes back ON you may have to reprogram or replaced ECM What is the Cost to Diagnose the Code P0603 Nissan? Labor: 1. P0303 Cylinder #3 Misfire. P0300 is often accompanied by cylinder-specific misfire codes (P030X, where the X indicates the cylinder number that is misfiring). What Caused The p0303 code (Possible Symptoms)? When your engine misfires it will behave badly, and there are many different causes of misfiring in todays OBD-II engines. P0303 is a cylinder-specific misfire code, meaning its only the third cylinder that has a misfire. It can be caused by several thingsJACUSTOMER-av840dva- :Ok. Changed the spark plug on the 3rd day. Nissan Altima For Sale in Sharjah Emirate Emirates; 5. The p0303 code is an engine misfire code, where the cylinder is specifically misfiring on the third cylinder. the car shake when I shift from P to D. You probably have a key that is starting to malfunction. It was so badly plugged that I am not sure how it didnt throw this code sooner. The P0303 code means that cylinder #3 is misfiring or is randomly misfiring. what else can it be? Nissan Cars & Trucks; Open Questions: 0 answers. 5 4 cylinder Mechanics Assistant: Are you fixing your Altima yourself? What have you tried so far? Steady. Misfire is present, but no misfire codes are registered in the computers memory and/or no check engine light (CEL) on. This issue does not affect any other Nissan or INFINITI vehicles. / Code P0303 Nissan Tech Notes The P0303 code means that cylinder #3 is misfiring or is randomly misfiring. If your Nissan Altima has P0300 and P0302 error codes, it’s best to diagnose why the second cylinder is misfiring and see if that will fix the P0302 code. Use FIXD to scan your Nissan Altima to verify P0420 is the only code present. The cost of diagnosing the P0303 2009 Nissan Altima Sedan code is 1. The P0303 code belongs to a series of diagnostic trouble codes starting from P0300 that refer to an engine misfire or incomplete combustion in one of the engine cylinders. Si ves el código de motor P0303, es porque tienes problemas con el cilindro número 3 de tu motor, que no quema combustible adecuadamente. Nissan Altima For Sale in Sharjah Emirate Emirates. P0300 in the Nissan Altima indicates random multiple misfiring, which means that multiple cylinders are misfiring at the same time. P0303 2002 Nissan Altima Sedan: Code Meaning, Causes >P0303 2002 Nissan Altima Sedan: Code Meaning, Causes. That’s why the OBD-II code P0303 is considered a serious issue and should be addressed immediately. For example, if the cylinder number 1 misfires in a 4-cylinder engine, it will run only on 3 cylinders and will have the code P0301, see the animation. 2003 Nissan Altima Horrible Shaking And Check Engine Yellow. Hi Guys, 2003 Altima popped up P0303 code. Nissan P0300 Symptoms. Nissan in Sharjah Emirate Emirates. However within a few minutes the problem returned. Still got the issue, swapped the third coil with 4th, still got misfiring at 3. The P0303 code means that cylinder #3 is misfiring or is randomly misfiring. The p0303 code is an engine misfire code, where the cylinder is specifically misfiring on the third cylinder. If your Nissan Altima has the P0303 trouble code, you should know that its about as common of a code as there is. I then replaced all four spark plug with Bosch Platinum+4 Spark Plug and erase the code. Issue Severity: SEVERE - Stop driving immediately. Code P0303 2004 Nissan Altima Sedan Tech Notes. Runs good but, idles rough when you start & stop. the car still does not pick up speed. Lack of power upon acceleration. The most common reason for this to happen is faulty or worn-out spark plug coil packs, especially if its been a while since you had a tune-up. P0303 indicates that cylinder number 3 is experiencing misfires. Buy Nissan 14032-8J10A, Fuel Injection Plenum Gasket US: http://amzn. Misfire p0303 and p0304 Mechanics Assistant: How many miles are on the car? Is it a steady misfire? Or random? 90,000 2013 Altima 2. how to change #2 coil pack on 2003 nissan altima 2. Model Year 2013-2018 Nissan Altima (L33) vehicles manufactured in the Smyrna, TN and Canton, MS plants from March 06, 2012 (SOP) to August 17, 2018 (EOP) are potentially affected. Learn what Trouble Code P0141 means, the cause, and how to fix it. This issue is unique to Model Year 2013-2018 Nissan Altima vehicles due to a combination of the model frontend design, anti-corrosion limitations and location of the hood latch release in close proximity to the fuel door release. P0303 indicates that cylinder number 3 is experiencing misfires. The ECM normally uses Two-Trip detection logic to turn on the CEL (the abnormality has to occur twice before the CEL comes ON). Most auto repairs shops charge between $75 and $150 per hour. Try doing the swap test from the previous section. 3M views 7 years ago Still having issues? Ask a certified mechanic online. The most common reason for this to happen is. P0300 is a generic OBDII code that can occur with the Nissan Altima. Sure enough, I got a P0303, and as a result, put a new coil into cylinder 3. P0303: Cylinder #3 Misfire. Today it threw a P0303 WITHOUT any major misfire symptoms or sluggishness. Codes P0303 And P1614 On Nissan Altima. I read the code and got P0303 and P0325. How To Fix Cylinder Misfire - P0300, P0301, P0302, P0303, P0304, P0305, P0306. still the code keeps popping up. Buy Nissan 14032-8J10A, Fuel Injection Plenum Gasket US: http://amzn. Check Engine Light is on or flashing. On V configuration engines, itll usually be the second cylinder on the head closer to the front of the engine. Nissan 3. Code P0303 Causes Cylinder 3 misfires can be caused by many reasons from a faulty ignition system, fuel system, or internal engine failure. Two days later, the vibrating starts again! I haul out. Yes my 06 Nissan altma shows a code # p0303 , the#3 cylinder misfire I changed out the plugs and coil pack on the #3 cylinder the #3 cylinder is wet maybe from water not gas or oil but there is no water on the dipstick or inside the oil cap but o did change all the plugs it is steel has a misfire on the cylinder. Diagnosing code P301 P302 P303 P304#NissanMisfire#NissanIgnitionCoil#NissanCheckEngine. Engine runs rough, hesitates, or jerks when accelerating. That was going to be my next step do to some other responses I saw. Nissan Pathfinder For Sale in Sharjah Emirate Emirates. I have a 2002 nissan altima 2. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder #3. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $154. I have a 2002 nissan altima 2. P0303 Nissan Code Meaning, Causes, Symptoms, & Tech Notes. Code P0603 Nissan Tech Notes Start by charging the vehicles battery and clean terminal, once the battery is charged and the terminals are clean and secure, erase code. STEP 2: CHECK FOR LOOSE CONNECTORS OR DAMAGED WIRING AT THE IGNITION COILS. P0300 is a generic OBDII code that can occur with the Nissan Altima. P0303 Engine Code in 3 Minutes. This code may be seen with other misfire codes as well as lean / rich condition codes. It depends on how serious the misfire is. Brand new & used Nissan Altima cars for sale in All Cities (UAE) - Sell your 2nd hand Nissan Altima cars on dubizzle & reach 1. P0303 2002 Nissan Altima Sedan: Code Meaning, Causes, …. Drivers may not notice any adverse conditions when driving. My next thought was fuel so, I bought some Seafoam fuel conditioner & added it to 1/4. Changed another spark plug for 3,still misfiring 3. You may smell raw gas coming from the tail pipe. These can cause random misfire conditions. The P0303 code means that cylinder #3 is misfiring or is randomly misfiring. The cost to diagnose the P0303 2002 Nissan Altima Sedan code is 1. Specifically, as noted by the code P0303, the #3 injector. See Possible Causes for the most common problems. 5L was running rough at about 1500 rpm and ch3ck engine light was flashing pulled codes had code for p0303 for misfire cylinder 3 so replaced #3 ignition coil code p0303 went away and turned into code p0300 for multiple misfire so replaced all spark plugs also replaced all coil boots and had to replace valve cover. Los factores comunes que pueden hacer que el código aparezca son los siguientes: Paquete de bobina de encendido dañado. Nissan Altima P0300: Meaning, Causes, + How to Fix >Nissan Altima P0300: Meaning, Causes, + How to Fix. Issue Severity: SEVERE – Stop driving immediately. The P0303 code means that cylinder #3 is misfiring or is randomly misfiring. What Does the P0303 Code Mean? Diagnostic trouble code (DTC) P0303 stands for Cylinder 3 Misfire Detected. Hi Guys, 2003 Altima popped up P0303 code. Changed the coil pack on that cylinder. If other codes are present, they must be addressed first. The cost to diagnose the P0303 2002 Nissan Altima Sedan code is 1. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder 3. If the problem persists more tests need to be done to diagnose the problem, see Possible Causes. to/2q7M2TwBuy Nissan 14033-8J100, Fuel Injection Plenum Gask. =====Claim your FREE engine code eraser 👉 https://free. Its a generic code (same meaning for all vehicles) that indicates that your car’s third cylinder is misfiring. =====Claim your FREE engine code eraser 👉 https://free. How to Fix P0303 Engine Code in 3 Minutes. P0603 Nissan: Code Meaning, Causes, Symptoms, & Tech Notes. The P0304 trouble code will trigger the Altima’s service engine soon light. And it starts to flash some times. In this specific case of error code P0303, the computer system is notifying the driver the cylinder number three is not firing as it should. Code P0303 Causes Cylinder 3 misfires can be caused by many reasons from a faulty ignition system, fuel system, or internal engine failure. What the P0303 code means The P0303 DTC is set when the ECU detects multiple misfires from cylinder 3. P0303 Code: Cylinder 3 Misfire Detected. Este código DTC P0303 nos informa que, la computadora ECM (Engine Control Module) del vehículo ha detectado que uno de los cilindros del motor no está funcionando correctamente. Depending on the damage sustained by the cat (s), you can have code P0420/0430 (3-Way Cat Efficiency due to inability to store O2) or even choking the engine or backfiring and other cat-related problems. What Does the P0303 Code Mean? Diagnostic trouble code (DTC) P0303 stands for “Cylinder 3 Misfire Detected. P0303 is a diagnostic trouble code (DTC) for Cylinder 3 Misfire Detected. The code P0300 stands for random misfire. This 2003 Nissan Altima misfire diagnosis. to/2q7M2TwBuy Nissan 14033-8J100, Fuel Injection Plenum Gask. Pulled 3rd cylinder coil pack and inspected boot and plug and all looked fine. P0303 is a generic diagnostic trouble code (DTC) indicating an issue with the firing of cylinder 3. Code P0303 is a #3 cylinder misfire code. Nissan Maxima 2016 sl full options perfect inside and out just run and drive. SOLVED: P0303 p0325 problem car shaking. However, the code does indicate that the vehicle’s computer system has sensed an issue in at least one of the car’s cylinders. Use FIXD to scan your Nissan to verify P0300 is the only code present. P0303 is a real drivability concern and should be dealt with right away. What Does Nissan Altima Code P0303 Mean? P0303 definition: Cylinder 3 misfire detected. Check Engine Light is on; Check Engine Light flashing; Engine runs rough and shaking; Lack of power from the engine; Fuel smell from the exhaust; Hesitations/Jerking when accelerating; Commonly associated with code P0300; How Do I Fix Nissan Altima Code. P0303: Cylinder #3 Misfire. Sensor de flujo de aire masivo dañado. Tighten or connect where necessary. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder #3. That’s why the OBD-II code P0303 is considered a serious issue and should be addressed immediately. Are you experiencing this condition on any other Nissan (or INFINITI) models? A. Nissan Altima P0303 Symptoms. The P0303 code means that cylinder 3 is misfiring or is randomly misfiring. Nissan Altima P0302: Cylinder 2 – Misfire (Causes + How to. The P0303 code means that cylinder #3 is misfiring or is randomly misfiring. Emerson Information Technology Solutions · 3rd Floor, F. Y la falla para este código de falla P0303 corresponde al cilindro número 3 del motor. Yes my 06 Nissan altma shows a code # p0303 , the#3 cylinder misfire I changed out the plugs and coil pack on the #3 cylinder the #3 cylinder is wet maybe from water not gas or oil but there is no water on the dipstick or inside the oil cap but o did change all the plugs it is steel has a misfire on the cylinder. Nissan Repair Misfire p0303 and p0304. How To Fix Cylinder Misfire - P0300, P0301, P0302, P0303, P0304, P0305, P0306. The code P030X (p0301-P0308) means that the cylinder number X misfires, or there is no combustion in that cylinder. Hi Guys, 2003 Altima popped up P0303 code. The most common reason for this to happen is faulty or worn-out spark plug coil packs, especially if it’s been a while since you had a tune-up. Diagnostic Code P0141: O2 Sensor Heater Circuit Malfunction. The Diagnostic Trouble Code (DTC) will be set when the Engine Control. An easy way to locate Nissan service centers for Car in Mohali is right here. This code indicates that your car’s engine is misfiring and can be a drivability threat. 2006 Nissan Altima S 14 Photos newly listed Price: $4,500 great value $1,440 below $5,940 CARFAX Value No Accident or Damage Reported 2-Owner Multiple Use Service History Dealer: Preferred Motors Inc Location: Tacoma, WA Mileage: 133,000 miles MPG: 21 city / 27 hwy Color: Gray Body Style: Sedan Engine: 4 Cyl 2. Sure enough, I got a P0303, and as a result, put a new coil into cylinder 3. If the engine speed fluctuates enough to cause the Crankshaft Position sensor signal to vary, the Engine Control Module can determine that a misfire is occurring. / Code P0303 2008 Nissan Altima Sedan Description When a misfire occurs, engine speed will fluctuate. Error “System too lean bank 1 and 2” meaning. SOLVED: Yes my 06 Nissan altma shows a code # p0303 ,. The only problem now is that it sputters and sounds like it wants to die once it starts. The auto repairs diagnosis time and labor rates vary by location, vehicles make and model,. The auto repair labor rates vary by location, your vehicles make and model, and even your engine type. The P0303 code means that cylinder 3 is misfiring or is randomly misfiring. Lesson for this video, never diagnose without a visual inspection. P0300 is a generic OBDII code that can occur with the Nissan Altima. If oil or coolant is in the tubes, this will also cause your miss fires. Nissan Sentra SV - 2016 - in excellent condition The car is in very good condition, purchased and driven Card payment group 2016 model 93000 km Engine type 1. Repair Urgency: Fix this code immediately (same-day if possible) to avoid ignition failure, catalytic converter damage, and dangerous conditions. The computer was putting out a P0303, a misfiring 3rd Cylinder. P0303 – Meaning, Causes, Symptoms, & Fixes. The code indicates that the powertrain control module (PCM. Use FIXD to scan your Nissan Altima to verify P0420 is the only code present. Si ves el código de motor P0303, es porque tienes problemas con el cilindro número 3 de tu motor, que no quema combustible adecuadamente. The auto repairs diagnosis time and labor rates vary by location, vehicles make and model, and even your engine type. Code P0303 Tech Notes. I went ahead and changed all spark plugs. I read the code and got P0303 and P0325. Pulled 3rd cylinder coil pack and inspected boot and plug and all looked. / Code P0303 2005 Nissan Altima Sedan Description When a misfire occurs, engine speed will fluctuate. I have another key, but have to run it down. However, when I try to accelerate to 30~40 mph, it starts to rattle again and failed to accelerate. If there is oil in the tubes, you will need to replace the valve cover gasket, if there is coolant in the tubes, you will need to do a pressure test on the cooling system to see where the leak is coming from. P0303 Nissan AltimaCode P0303 2004 Nissan Altima Sedan Tech Notes. Pulled all coil packs and all boots and plugs are in good shape. Buy superlative quality Nissan spare parts, compare online prices from the top-rated Nissan part dealers in UAE and get the best deal, fast delivery, used but genuine car parts Nissan Altima 2014 Petrol Engine. The P0303 code means that cylinder #3 is misfiring or is randomly misfiring. Code P0303 Nissan Tech Notes The P0303 code means that cylinder #3 is misfiring or is randomly misfiring. The vehicle itself may begin to run rough. Start by checking for intake leaks and if no leaks are found the next. Make sure to check for moisture in the spark plug tubes. Here are some symptoms of a misfiring engine:. A-40A, Phase-VIII B,, Industrial, Area,. Durga Electric Company SCF 47, Industrial Area Mohali Phase 9, Sahibzada Ajit Singh Nagar, Chandigarh 160062, India. Nissan Altima 2016 in Abu Dhabi, 4 Cylinder, 2500 cc, the price is 25000 Dirham. co 👈=====Engine Code P0303 Saving Repair Part. Ive shared this issue before with no luck. / Code P0303 Nissan Tech Notes The P0303 code means that cylinder #3 is misfiring or is randomly misfiring. I have a 2003 Nissan Altima,Im having a code p0303 and replaced the coil,plug and the injector also tested it for compression and it is good. P0303 And P1614 On Nissan Altima. Nissan: Code Meaning, Causes, Symptoms, & Tech Notes>P0603 Nissan: Code Meaning, Causes, Symptoms, & Tech Notes. Code P0303 2004 Nissan Altima Sedan Description. can some one please suggest how can I fix it.