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P0304 Diagnostic Trouble Code Discussion for July 2013

Cylinder 4 Misfire Detected


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Trouble Ticket Help Requests for DTC P0304
Help Request Posted
1996 Honda Civic EX 1.6L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1HGEJ8142T
engine replacement with different head and new timing belt and water pump . when first started missed on all cylinders , replaced plugs , now just 2 and 4 are effected. idle vac. at 19.1 and fuel trims are at zero.
July 06, 2013
1996 Honda Civic EX 1.6L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1HGEJ8142T
engine replacement with different head and new timing belt and water pump . when first started missed on all cylinders , replaced plugs , now just 2 and 4 are effected. idle vac. at 19.1 and fuel trims are at zero.
July 07, 2013
2000 Mercedes-Benz E320 4Matic 3.2L Misfire VIN: WDBJF82J0Y
P0304: cyl 4 misfire. Car runs fine untill hard acceleration. Then check engine light comes on and shuts down #4, #5 and #6 fuel injectors. Do not feel any misfire until injectors shut down. Shut off engine and restart, runs great again until hard acceleration. I replaced left side...
July 15, 2013
2002 Saturn Vue 3.0L Excessive Emissions, Poor Idle Quality, Misfire, MIL Lamp on VIN: 5GZCZ63B72
P0304: Cylinder 4 Misfire Detected. We have been handed a real disaster here. No info from previous shop, customer had to get cops involved to get his car back. Now for the good stuff: Engine runs very rich. While monitoring scanner the misfires were the most on cylinders 1,4,5,6 occasionally ...
July 17, 2013
2003 Suzuki Aerio S 2.0L Poor Idle Quality, Hesitation, Stall, MIL Lamp on VIN: JS2RA41S13
P0304: Cylinder 4 Misfire Detected. Came in for misfiring on cylinder 3 - found spark plug center electrode had broken and fallen inside engine. All 4 replaced.. During road test after repair, started stalling out, misfiring, barely ran. Figured internal engine damage. Got it back to the shop a...
July 18, 2013
2002 Toyota Tacoma Pre Runner 2.7L Poor Idle Quality, Hesitation, Stall VIN: 5TEGM92N32
P0304: Cylinder 4 Misfire Detected. Hey yall. i have this truck that is making me go insaine. i feel like im getting sick with something so that may be why i cannot fix this dang thing. customer drove truck in saying its not wanting to go. they acutally wanted me to throw in a fuel pump first. s...
July 20, 2013
2001 Mercedes-Benz S500 Guard 5.0L Misfire, MIL Lamp on VIN: WDBNG75J91
P0304: Cylinder 4 misfire. I have this Benz here that randomly will start misfiring. Have retrieved this same cylinder misfire code at 2 different times. One time another tech was driving the car and it did start misfirig cycled the key off and restarted then was all fine. Customer has ...
July 22, 2013
2002 Saturn Vue 3.0L Excessive Emissions, Poor Idle Quality, Misfire, MIL Lamp on VIN: 5GZCZ63B72
P0304: Cylinder 4 Misfire Detected. We have been handed a real disaster here. No info from previous shop, customer had to get cops involved to get his car back. Now for the good stuff: Engine runs very rich. While monitoring scanner the misfires were the most on cylinders 1,4,5,6 occasionally ...
July 24, 2013
2003 Mazda Tribute LX 3.0L Misfire VIN: 4F2CZ94153
P0304: Cylinder 4 Misfire Detected. This little ole Mazda was brought to me by another shop with a steady misfire on # 4 & 6 cylinders. They had done coil packs, injectors, & compression check & no matter what they did they miss stayed steady. We performed spark test on missing cylin...
July 25, 2013
2002 Acura TL 3.2L Misfire VIN: 19UUA566X2
P0304: Cylinder 4 Misfire Detected. ... driveing me nuts. Car came in complants of misfireing and check engine light on. Scan codes found p0301 302 304 306 300 also codes p1456,p0740,p1399. swaped coil with known good one car smooth up to the point i ordered the other 5 ign. coils from acura, in...
July 29, 2013
1996 Honda Civic EX 1.6L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1HGEJ8142T
engine replacement with different head and new timing belt and water pump . when first started missed on all cylinders , replaced plugs , now just 2 and 4 are effected. idle vac. at 19.1 and fuel trims are at zero.
July 06, 2013
1996 Honda Civic EX 1.6L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1HGEJ8142T
engine replacement with different head and new timing belt and water pump . when first started missed on all cylinders , replaced plugs , now just 2 and 4 are effected. idle vac. at 19.1 and fuel trims are at zero.
July 07, 2013
2000 Mercedes-Benz E320 4Matic 3.2L Misfire VIN: WDBJF82J0Y
P0304: cyl 4 misfire. Car runs fine untill hard acceleration. Then check engine light comes on and shuts down #4, #5 and #6 fuel injectors. Do not feel any misfire until injectors shut down. Shut off engine and restart, runs great again until hard acceleration. I replaced left side...
July 15, 2013
2002 Saturn Vue 3.0L Excessive Emissions, Poor Idle Quality, Misfire, MIL Lamp on VIN: 5GZCZ63B72
P0304: Cylinder 4 Misfire Detected. We have been handed a real disaster here. No info from previous shop, customer had to get cops involved to get his car back. Now for the good stuff: Engine runs very rich. While monitoring scanner the misfires were the most on cylinders 1,4,5,6 occasionally ...
July 17, 2013
2003 Suzuki Aerio S 2.0L Poor Idle Quality, Hesitation, Stall, MIL Lamp on VIN: JS2RA41S13
P0304: Cylinder 4 Misfire Detected. Came in for misfiring on cylinder 3 - found spark plug center electrode had broken and fallen inside engine. All 4 replaced.. During road test after repair, started stalling out, misfiring, barely ran. Figured internal engine damage. Got it back to the shop a...
July 18, 2013
2002 Toyota Tacoma Pre Runner 2.7L Poor Idle Quality, Hesitation, Stall VIN: 5TEGM92N32
P0304: Cylinder 4 Misfire Detected. Hey yall. i have this truck that is making me go insaine. i feel like im getting sick with something so that may be why i cannot fix this dang thing. customer drove truck in saying its not wanting to go. they acutally wanted me to throw in a fuel pump first. s...
July 20, 2013
2001 Mercedes-Benz S500 Guard 5.0L Misfire, MIL Lamp on VIN: WDBNG75J91
P0304: Cylinder 4 misfire. I have this Benz here that randomly will start misfiring. Have retrieved this same cylinder misfire code at 2 different times. One time another tech was driving the car and it did start misfirig cycled the key off and restarted then was all fine. Customer has ...
July 22, 2013
2002 Saturn Vue 3.0L Excessive Emissions, Poor Idle Quality, Misfire, MIL Lamp on VIN: 5GZCZ63B72
P0304: Cylinder 4 Misfire Detected. We have been handed a real disaster here. No info from previous shop, customer had to get cops involved to get his car back. Now for the good stuff: Engine runs very rich. While monitoring scanner the misfires were the most on cylinders 1,4,5,6 occasionally ...
July 24, 2013
2003 Mazda Tribute LX 3.0L Misfire VIN: 4F2CZ94153
P0304: Cylinder 4 Misfire Detected. This little ole Mazda was brought to me by another shop with a steady misfire on # 4 & 6 cylinders. They had done coil packs, injectors, & compression check & no matter what they did they miss stayed steady. We performed spark test on missing cylin...
July 25, 2013
2002 Acura TL 3.2L Misfire VIN: 19UUA566X2
P0304: Cylinder 4 Misfire Detected. ... driveing me nuts. Car came in complants of misfireing and check engine light on. Scan codes found p0301 302 304 306 300 also codes p1456,p0740,p1399. swaped coil with known good one car smooth up to the point i ordered the other 5 ign. coils from acura, in...
July 29, 2013