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Jerking and Bucking

Post engine, year, tranny and mileage. Go to Autozone or Advance, have the CEL codes read and post the exact codes. Bucking over 4K RPM could be many things (IMRC, fuel pump, air filter, fuel filter, Spark Plugs, sp wires, ignition coil, etc.)
 
i have just replaced the fuel filter and pvc value and it has a short ram intake on it. so could it be the wires and plugs?:shrug:

....yes...or....the IMRC. Way I checked my IMRC was unplugging the module and then drive the car. It wont have secondaries, however if the problem is linked to the IMRC, then it will stop. Thats how to trouble shoot that. Plugs, wire, just change'em if you havent in a while. Take an hour and do it, because eventually they will fail.
 
i have a question about the IMRC relocation. i have not looked to see but, will moving it cause any problems with the cable that comes from it. or is it like a Bicycle brake line and as long as its not kinked/ stretched you are ok?
 
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