So i have this weird problem.. I let me car sit for 24 hours and start it, it will idle good, kill it and try and restart it again and it does not want to idle unless i keep the gas down a lil... it also seems to be misfiring at low rpms, give it any gas and it stops right away... and also the car will drive around good but, will not stay idleing when you come to a stop..the car has brand new wires and plugs... do yall think this could coil pack related.. the coils do have 150k+ miles on them.. also the car has a t-rex cam and TEA stage 1.5 heads that have been milled downed .030.. any suggestions??

 

Sounds like a classic T-rex driveability.... I assume its been tuned, but probably needs the lower rpm tables tweaked

 

nope no tune yet.. i was thinkin some of it could be just the size of them cam, but its the restarting after its started once is what is gettin me... its not makin any sense

 

Your lucky that cam idles at all without a tune. Get it tuned and it will fix your problem.

 

u think? even with it being a m6..

 

Mine had same issue. The desired idle needs to be raised a few hundred RPM's and a tune done.

 

You're lucky the car idles at all....

 

The type of transmission has nothing to do with it. It may be easier to keep the car running with the M6 because you can easily manipulate the throttle while disengaging the clutch. But a cam of that size requires tuning to run properly, and not just at idle. You can potentially ruin your engine by driving untuned, and I'm sure your stock injectors are causing you to run lean. I wouldn't drive a heads and cam car until it had a good tune.

 

and you raise the disired idle by tuning right?? im learning the electronic side of these motors lol..

 

thx for all the respounces guys.. so when its tuned it will idle and the misfires in the low rpms will go away?? Sorry for all the questions ive only ran a small cam in my car before and didnt have any of these problems and im just tryin to figure them out and learn along the way.