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P0303 Diagnostic Trouble Code Discussion for February 2009

Cylinder 3 Misfire Detected


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Trouble Ticket Help Requests for DTC P0303
Help Request Posted
2005 Ford Ranger Edge 4.0L Misfire VIN: 1FTZR15EX5
P0303: cylinder 3 misfire detected. has random misfire cold at idle,warm misfires on light acceleration. fuel pressure is a little high 70 psi and pulsating. long term fuel trim is at +10 %. we have replace two sets of spark plugs,wires and coils. any help would be appreciated.
February 02, 2009
2000 Mercury Mystique GS 2.0L Hesitation, Surge, Cuts out, Misfire, MIL Lamp on VIN: 1MEFM6532Y
P0303: misfire 3 cyl. this car when cold runs fine. once it warms up it runs like its running out of fuel. scanner shows at times it running way lean but most of the time way rich at just above a steady cruise. the more you load it the worse it gets. when this is happening the inj ...
February 04, 2009
2001 Toyota Celica GT 1.8L Cuts out, Misfire, MIL Lamp on VIN: JTDDR32T21
P0303: Cylinder 3 Misfire Detected. car come in with the low compress at # 2 cylinder, repalce the used engine. after customer pick up one week later, car come bacek with the a noise engine. replace the engine again. car start has misfires when it cold start. after the car full warm up the misfi...
February 05, 2009
2001 Toyota Celica GT 1.8L Cuts out, Misfire, MIL Lamp on VIN: JTDDR32T21
P0303: Cylinder 3 Misfire Detected. car come in with the low compress at # 2 cylinder, repalce the used engine. after customer pick up one week later, car come bacek with the a noise engine. replace the engine again. car start has misfires when it cold start. after the car full warm up the misfi...
February 06, 2009
1997 Pontiac Grand Am SE 2.4L Misfire VIN: 1G2NE52T9V
P0303: Cylinder 3 Misfire Detected. The car over heated and the customer had the head gaskets replaced. the car has had a miss at idle since then, but runs great off idle.The miss is bad on #3 but 2-4 will misfire to but not set codes. I did a compression check and all 4 are 80.I swapped the plu...
February 18, 2009
2000 Volvo V40 1.9L Misfire, MIL Lamp on VIN: YV1VW2554Y
P0303: 3 cylinder misfire. MIL on, misfire during acceleration and sometimes under steady load. Handheld scanner (Retriever w/OBD2 cartridge) reports #3 cylinder misfire. Swapped #2 & 3 spark plugs (both appeared fine), misfire stayed with #3. Swapped coils & leads (1&4 with...
February 19, 2009
2000 Chevrolet Astro 4.3L Poor Idle Quality, Hesitation, Surge, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GCDL19WXY
P0303: Cylinder 3 Misfire Detected. Hello to all, this is my first time using this so bear with me. i have this astro that keep throwing missfire codes on cylinders 3 and 4. after clearing codes the missfire comes back on cylinder 3 then clear them again and the new code is for cylinder 4 only. ...
February 20, 2009
1997 GMC C1500 Sierra SL 5.7L Poor Idle Quality, Misfire, MIL Lamp on VIN: 2GTEC19R8V
P0303: Cylinder 3 Misfire Detected. The truck continues to get P0300 Multiple Random mis-fire code and shows mis-fires on cylinders 1, 3, & 5. Fuel pump has been replaced along with rotor, distributor, plugs, spark plug wires, etc. The intake gaskets were changed on the truck over 5 years ag...
February 23, 2009
2002 Volkswagen Passat GLS 1.8L Misfire, MIL Lamp on VIN: WVWPD63B62
P0303: cyl 3 misfire. CAME IN FIRST TIME FOR P0304, REPLACED ALL PLUGS AND # 4 COIL. ROAD TESTED AND ALL WAS FINE. CUSTOMER TOOK CAR, NEXT MORNING CAME BACK WITH CYL #3 MISFIRE, REPLACED #3 COIL, ROAD TESTED, ALL GOOD. CAME BACK A FEW DAYS LATER AND HAD CODE FOR#2 CYL MISFIRE, REPL...
February 27, 2009
2005 Ford Ranger Edge 4.0L Misfire VIN: 1FTZR15EX5
P0303: cylinder 3 misfire detected. has random misfire cold at idle,warm misfires on light acceleration. fuel pressure is a little high 70 psi and pulsating. long term fuel trim is at +10 %. we have replace two sets of spark plugs,wires and coils. any help would be appreciated.
February 02, 2009
2000 Mercury Mystique GS 2.0L Hesitation, Surge, Cuts out, Misfire, MIL Lamp on VIN: 1MEFM6532Y
P0303: misfire 3 cyl. this car when cold runs fine. once it warms up it runs like its running out of fuel. scanner shows at times it running way lean but most of the time way rich at just above a steady cruise. the more you load it the worse it gets. when this is happening the inj ...
February 04, 2009
2001 Toyota Celica GT 1.8L Cuts out, Misfire, MIL Lamp on VIN: JTDDR32T21
P0303: Cylinder 3 Misfire Detected. car come in with the low compress at # 2 cylinder, repalce the used engine. after customer pick up one week later, car come bacek with the a noise engine. replace the engine again. car start has misfires when it cold start. after the car full warm up the misfi...
February 05, 2009
2001 Toyota Celica GT 1.8L Cuts out, Misfire, MIL Lamp on VIN: JTDDR32T21
P0303: Cylinder 3 Misfire Detected. car come in with the low compress at # 2 cylinder, repalce the used engine. after customer pick up one week later, car come bacek with the a noise engine. replace the engine again. car start has misfires when it cold start. after the car full warm up the misfi...
February 06, 2009
1997 Pontiac Grand Am SE 2.4L Misfire VIN: 1G2NE52T9V
P0303: Cylinder 3 Misfire Detected. The car over heated and the customer had the head gaskets replaced. the car has had a miss at idle since then, but runs great off idle.The miss is bad on #3 but 2-4 will misfire to but not set codes. I did a compression check and all 4 are 80.I swapped the plu...
February 18, 2009
2000 Volvo V40 1.9L Misfire, MIL Lamp on VIN: YV1VW2554Y
P0303: 3 cylinder misfire. MIL on, misfire during acceleration and sometimes under steady load. Handheld scanner (Retriever w/OBD2 cartridge) reports #3 cylinder misfire. Swapped #2 & 3 spark plugs (both appeared fine), misfire stayed with #3. Swapped coils & leads (1&4 with...
February 19, 2009
2000 Chevrolet Astro 4.3L Poor Idle Quality, Hesitation, Surge, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GCDL19WXY
P0303: Cylinder 3 Misfire Detected. Hello to all, this is my first time using this so bear with me. i have this astro that keep throwing missfire codes on cylinders 3 and 4. after clearing codes the missfire comes back on cylinder 3 then clear them again and the new code is for cylinder 4 only. ...
February 20, 2009
1997 GMC C1500 Sierra SL 5.7L Poor Idle Quality, Misfire, MIL Lamp on VIN: 2GTEC19R8V
P0303: Cylinder 3 Misfire Detected. The truck continues to get P0300 Multiple Random mis-fire code and shows mis-fires on cylinders 1, 3, & 5. Fuel pump has been replaced along with rotor, distributor, plugs, spark plug wires, etc. The intake gaskets were changed on the truck over 5 years ag...
February 23, 2009
2002 Volkswagen Passat GLS 1.8L Misfire, MIL Lamp on VIN: WVWPD63B62
P0303: cyl 3 misfire. CAME IN FIRST TIME FOR P0304, REPLACED ALL PLUGS AND # 4 COIL. ROAD TESTED AND ALL WAS FINE. CUSTOMER TOOK CAR, NEXT MORNING CAME BACK WITH CYL #3 MISFIRE, REPLACED #3 COIL, ROAD TESTED, ALL GOOD. CAME BACK A FEW DAYS LATER AND HAD CODE FOR#2 CYL MISFIRE, REPL...
February 27, 2009