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Car still miss firing HELP!

Kaido_RR

By Kaido_RR,
in Engines & Forced Induction

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Kaido_RR Grand Master

Kaido_RR

Posted
Posted

Hey,

Will i just got my major serives done had everything change filter,oil, plugs etc. Now before the services it was miss firing majorly as soon as i hit boost i lost all power and just got pop pop pop.

Now after the serivces it still happens around the 4,5k rpm mark, i lost power and get like a droning sound :confused:

Im soo confused i just spent major money on the car i through it would fix the problem :S im going back to the place 2morrow but for the time being anyone got any ideas

PLZ HELP!!!

THanks mike

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Zahos Mentor

Zahos

Posted
Posted

If you search on this topic, you will find that one or more of the following 3 solutions will fix your problem....

- spark plug (gap/heat range). You will find coppers gapped at 0.7 - 0.8 mm will work best for you. For a street driven car with basic mods (FMIC, boost, exhaust, SAFC/PFC , etc), stay with a warmer heat range - 6.

- coils: measure the resistance accross all coils when cold, make note of it. Then meassure them again when hot. You will find faulty coils will have a different resistance to a healthy coil when warm.

- A:F ratios. Get it on a dyno to see what your A:F ratios are like where it pops. I'm guessing they will be extremely rich at that point. A SAFC will help you sort those out, or even better, a PFC to help with your timing issues also...

Zahos

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