Dropping cylinders I lose power like I lose 2 cyclinders or so then it cuts back in and then out, it is every now and then but im afraid im losing a coil pack or something not sure. I pulled the plugs to see what ones r not firing but they are all black and wet with fuel so its like one coil pack drops and comes back n the other one will sfter than come back. Any answers or ideas of what is going on?
SOURCE: high idle and misfire cylinder 1
This could have several causes however the most likely cause is either a throttle positioning sensor or the mass air flow sensor is bad. To check either of them you need to have an OBDII scanner that can read voltage. It would be best to send it to your local GM tech to have them do an onboard diagnostic rather than spend alot on parts that may not solve the problem.
SOURCE: I have 02 L300 3.0 with cylinder1 miss fire.I
I have a 2001 Audi A6. It has 105,000 miles on it. The problem is the car sputters and misfires when accelerating. Once the RPM is up to 3,000 the problem stops. I?ve changed the spark plugs, coils and plug wires. The problem went away for about month but, now the problem is back. Please help.
SOURCE: I have a 2001 saturn sc 2 P0303
It sounds like a bad sensor or a break in the wire to the injector
SOURCE: 2000 saturn SL2 1.9 liter
First make sure that cylinder is getting sufficient spark and fuel delivery once you have verified the cylinder is getting spark and fuel and theres still a problem with the cylinder misfiring take all the spark plugs out and perform a cylinder compression test the compression for that engine should be no lower then 180 PSI if cylinder 2 is lower then that spec there could be a problem with one of the valves not sealing properly, worn or cracked piston rings or a weak headgasket...
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