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P0301 Diagnostic Trouble Code Discussion for October 2007

Cylinder 1 Misfire Detected


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Trouble Ticket Help Requests for DTC P0301
Help Request Posted
1995 Lexus GS300 3.0L MIL Lamp on VIN: 1J8BD42S4T
P0301: Misfire Cylinder 1. Greetings, Another mind bender. Car was in our shop for major work-- steering rack and pump, major service, timing belt, and the check engine light was on for an EGR code--only stored code. We ended up cleaning all the EGR passages and replaced the EGR valve a...
October 01, 2007
1996 Lexus SC300 3.0L MIL Lamp on VIN: JT8CD32Z4T
P0301: Cylinder 1 Misfire Detected. Vehicle came in for oil leaks. Valve cover gaskets, cam seals, crank seal, P/S pressure hose and steering rack were replaced. After repairs were completed, MIL illuminated and began flashing with 3 misfire codes listed below being stored. The misfire PIDs fo...
October 01, 2007
1996 Pontiac Grand Am SE 2.4L Misfire VIN: 1G2NE52T7T
P0301: Cylinder 1 Misfire Detected. My smog tech is not in today and im stomped on my next move for trying to figure this car out. has 175psi compression 2.4mV at injector at idle and number four cylinder still misses can anybody help thanks
October 01, 2007
1999 Toyota Solara SE 3.0L Excessive Emissions, Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 2T1CF22P4X
P0301: Cylinder 1 Misfire Detected. This vehicle came in with a running rough, black smoke, exhaust leak, blinking check engine light, no power. Checked the basics, code lead to rear bank misfire. This vehicle has the coil over on the front of the engine and wires going to rear cylinders, checke...
October 05, 2007
2002 Chevrolet Impala 3.8L Misfire VIN: 2G1WF55K52
P0301: cylinder 1 misfire. Car was serviced and found to missing. pulled spark plugs and found was worn out. replaced plugs, and road tested. misfire p0300 then p0303. replaced spark plug wires and test drove again. Did some better but under hard acceleration misfiring and and no power....
October 08, 2007
2001 Chevrolet Silverado 2500 HD 6.0L MIL Lamp on VIN: 1GHK24UX1E
P0301: Cylinder 1 Misfire Detected. Hello, this truck is showing a misfire for cyl # 1 and 6 while my scanner is connected and it seems to run and drive perfect. p0300,301 and 306 keeps coming up . I checked tsb's and found injector problems to be common, some alarm systems causing problems, and...
October 10, 2007
1998 Isuzu Hombre S 2.2L Poor Idle Quality, MIL Lamp on VIN: 1GGCS1446W
P0301: Cylinder 1 Misfire Detected. Hello all. This Hombre loads up and idles rough after startup for 1 minute, can smell raw fuel. I suspect an injector is leaking during a short soak. Fuel psi is 42, unhook reg hose and is 48, spec is 31-44 psi. let is set 10 minutes, engine off, fuel psi drop...
October 18, 2007
1996 Chevrolet Corsica 2.2L Misfire VIN: 1G1LD5542T
P0301: Cylinder 1 Misfire Detected. hello all, i have this good ol corsica that will backfire out of the intake only when accelarating from a stop or snapping throttle in the garage. replaced plugs, wires, fuel filter. oe from factory and one plug was carbon tracking all around the porcelin. cle...
October 20, 2007
1996 Chevrolet Corsica 2.2L Misfire VIN: 1G1LD5542T
P0301: Cylinder 1 Misfire Detected. hello all, i have this good ol corsica that will backfire out of the intake only when accelarating from a stop or snapping throttle in the garage. replaced plugs, wires, fuel filter. oe from factory and one plug was carbon tracking all around the porcelin. cle...
October 22, 2007
2001 Chevrolet Express 1500 4.3L Hesitation, Misfire, MIL Lamp on
P0301: Cylinder 1 Misfire Detected. ... and off for month and a half now. Came in running rough with a miss on #1 compression test revealed no compression on #1 replaced intake valve compression is back to 150 so are all other cylinders here is the catch is still counting missfires on #1 check e...
October 28, 2007
2003 Audi A6 Quattro 4.2L Excessive Emissions, Misfire, MIL Lamp on VIN: WAUML64B13
P0301: misfire cylinder 1. Customer previously had the Audi to another shop. They installed 8 new coils and an air mass meter,-genuine Audi parts. The Audi will idle steady and not misfire. While watching the misfire counter on the vag scanner you can see misfires in all 8 cylinders whe...
October 29, 2007
1996 Ford Windstar GL 3.8L Excessive Emissions, Poor Idle Quality, Misfire, MIL Lamp on VIN: 2FMDA5146T
P0301: missfire on cyl 1. ... check engine light on and a dead miss on cyl#1. I changed the plugs ( I noticed that the #1 plug had some type of brownish/rust colored deposit on it) and wires and van ran good for 2 weeks. Then the check engine light came back on and the engine started m...
October 30, 2007
2001 Subaru Outback L.L. Bean 3.0L Misfire, MIL Lamp on VIN: 4S3BH80651
P0301: Cylinder 1 Misfire Detected. Hello Subaru Tech's. This 6 cyl has a random misfire ONLY when first started in the morning. It does it every morning & only once a day. Its has had new spark plugs & regular maint. I can't find anything obvious. Have searched the archives & forums...
October 31, 2007