Hey there, I have sort of a weird problem. I changed the cams in my built NA motor yesterday back to stock so that I could aircare it. When I put everything together the car ran like a bag of ****. Sounds like its missing. I had a slight problem before when I had the old cams in of blowing out the spark at mid-high rpms.

Well I eliminated the plug wires as the problem(brand new ngk's), as well as the plugs(brand new bkr7e's).

I just threw the brand new plugs in and ran the car for about 5 minutes. I shut it off cause it was still running shitty and pulled the plugs to see what they looked like. Plugs 1 & 4 were black/wet smelled of fuel. Plugs 2 & 3 looked brand new still. I took the dist cap off as well and it Looked ok.

What do you guys know of that can cause this? Im becoming increasingly frustrated with this motor

 

ttt

 

make sure your timing is correct

 

timing seems ok. It is like a missfire at idle and whenever it revs up.

 

Did you perform a valve lash adjustment after putting in the new cams? I find it hard to believe that a new set of NGK wires and plugs is causing problems.

 

Yes I did, and i think i narrowed the problem down to overfueling (dsm 450's + resistor box + oem ecu)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Cpt Ben &raquo;</TD></TR><TR><TD CLASS="quote">Yes I did, and i think i narrowed the problem down to overfueling (dsm 450's + resistor box + oem ecu)</TD></TR></TABLE>

Yeah, my next question would have been the fuel setup and management. You need to have that ECU tuned for your setup.

 

throwing stock injectors back in in the morning. Just gotta get new seals. Ill let you know how it goes.