Someone help me quick. Well first off my car is sitting halfway home on the road. I dont know whathappen, first off i got the car started after the rebuild and it ran ok with the 230/236 and no tune but it would die if it tried to idle. I took if for a few laps around town after school and it ran ok, ran strong, then it started missing and running wierd and died. I had to hold the pedal to the floor to get it to start and after dying a few time if finally got going again and decied to go home to work on it, well the whole why home it ran like ****. It was floored and wouldnt pass 3k rpms in 3rd gear(a4). Then when i slowed down for a corner it just died and will no longer start. What could be wrong... the headers were really close to the o2wires on the pass side, kinda wedged between there and the fender but it had heat wrap on it so i didnt worry, Cars dont really need o2 sensors to run anyways do they?

some one help me im stumped.

thanks
james

 

What happened? You put in a big ol' cam without any reprogramming and expect it to run ok. There may be other things wrong, but without any data logs, it would be hard to pinpoint.

 

No, I don't think the O2's are causing your engine to die. More likely, I would check the plug wires. They often burn after a rerouting and exhibit symptoms similar to what you've described. I have also had RR's come loose on me and cause roughness and a no-start. Hope this helps.

 

So it could be that the rockers have come loose....i just hand tightend the rockers untill i felt drag on the pushrod and then i turned it a quarter turn with my hand(suprisingly easy hmm..) and tightend down the poly lock, maybe i didn't get the locks tight enough.

shoebox...i wanted to drive the car for a bit untill i got a tune to make it seem like a well spent 100 bucks.

When i first got the car out of auto shop and drove it about a 1/4 mile i stopped at a stop sign then i went on and it accelerated good and spun shifting into 2nd(no i wasnt rodding it, the a4 and 4.10s always spin on shifts) but then it started running crappy.

thanks guys, i feel sorry for my poor car all alone on the side of the highway... im gona go work on once a pickup gets home.

 

This happened right after my cam swap. We put everything back together and it would randomly die. We found we hadn't pushed the electrical connector that comes in between the passenger head and intake that plugs into the opti was not in all the way. Get a long flat head screw driver and push it in. Yours may be loose.