deleted most of AC, AIR installed a set of flowtech shorites and ypipe. Changed wires and plugs. Car runs like crap. Its been in the garage for most of the winter but now it runs like real crap..id rule out bad gas because before i did the tuneup/header install it ran fine..now the motor like shakes and you can feel the whole car shaking. when i rev it it like pauses and then continues revving, like it lags or something..got no lights or codes..its just the ypipe on there now if that means anything..

any ideas? Would rather not hafta take it anywhere...
thanks alot

joe

 

Check all your plug wires make sure none are disconnected or got burnt from the headers. Did you reinstall the O2 sensor on teh headers?

 

I agree with Bron. It is easy to get the wires on wrong or have them burn up in a matter of minutes if they are laying on a primary. You didn't damage the knock sensor or anything else did you?

 

where exactly would the knock sensor be? it wouldnt be a lil push in style sensor on the pass side around the center of the head would it? if not whats that sensor? and the wires are all on right and on good and not laying ona header tube..

 

The knock sensor is on the block and is very fragile and can break if it is hurt. The sensor on the passenger side head is the fan switch. You can destroy that and your car will run fine. You may want to data log to see whats goin on. It may be time for a custom chip.

 

what is the life of a original GM 1984 knock sensor? mine is original 96,000 miles. is this something i should replace. seems to be OK. get counts on start up and had some at 2400 20-30 map but went away with taking out 2 deg. so seems to work.

 

If it is not damaged than it is fine. A knock sensor is just an accelerometer and there is not much to it.

 

It sounds like you've got a few plug wires crossed up. I had the same problem after the engine swap and I discovered the wires on the #5 and #7 were backwards.

 

Check the wire fro the 02 sensor, may have burned from the header.
jimjohn