After I rebuilt my motor, with the hotcam kit when I get on it, I get bad backfirng out of the exhaust. I put 2 new optis on, wires are pretty new, cleaned my IAC valve, throttle body is clean, and installed FRP set at 43ish at idle.
This is my "to do" list
1.Replace IAc valve totally
2.Replace TPS
3.Replace EGR vavle
4.Get heated o2's for my long tubes
5.Replace IAT
6.Readjust vavles b/c I got some clicks(would this help?)
7.?

I am stumped, is there anything else I missed. I did tons of searchs and this is what I found

Thank you very much
Matt

 

IGNITION COIL, THAT'S A SUGGESTION

 

to what that guy said. check connections. is the opti in the right position? but as stated b4 change the 20 dolla coil.

 

How do I know if the opti is in the right position?

 

nto trying to steal the thread....but my car with the Loudmouth pops when cold sounds liek a backfire but only when u hit the gas hard when cold and let off really fast...thats just exhaust? or will coil help me ?

 

The opti has to be lined up with the cam. There is a lil notch in the opti pin that goes into your angine and on the opti it has to be matched.

 

Can it go in the wrong way? If it doen'st line up it wouldnt go in right?