The trans am in my sig just started giving me some problems, At first is started only when going up a steep hill and and it was like someone kept jabbing my brakes, and it does it all the time when its at operating temp. **It doesn't do it when its cold**

>I had the original opti at 149k so I changed it out for the Msd unit figuring that would be the culprit. no go
>fuel pressure is at 38psi KOEO and rises when I start and I rev it.
>1 yr old champion plat spark plugs
>I didn't change the wires when I did the opti because they are 1 yr old
>I scanned it and the driver side bank o2 sensor is reading more oxygen then the right side, no codes.everything else looks normal
>new 24lb accel injectors
>egr was tuned out and deleted
I had unlpugged the maf and took it for a ride with no change, as I also did to the oxygen sensors and iat sensor with no change. I took it for a ride and took the vacuum line off the fpr with again no change. I am at wits end.

 

Take a look at the EGR. A stuck open unit will cause hesitation and stumbling. It will be worse as the engince warms and the mixture is leaned out...

 

I should have mentioned that, I dont have egr anymore.
thanks !

 

OK, it's not that then....

 

you think a coil or icm could cause a problem to 1 bank ?

 

could be the o2, maybe its reading wrong?

 

I wonder if there is a way to ohm them out ?

 

What do you mean by "reading more oxygen"?

 

I believe he means its runing lean.

 

when we put it on the snap on scan tool the right bank was bouncing from like 90's-900's while the left bank was only going down to like 200's-900's

 

I just checked those plugs on side that o2sensor was reading funny and they are gas soaked !!!. my intake also smells of gas and all the rubber hoses are now soft

 

if its only doing it while at temperature, try adding the washers to isolate/insulate the icm from the heads..

 

yeah i did that awhile ago, but that icm and coil wouldn't make it miss on one side would it ? it has to be either o2 sensor, injector, plugs/wires/distributor.

 

Why don't you let him answer? I needed the numbers he posted, not your opinion.

 

I am going to the salvage yard and just grabbing a bunch of sensors, hope for the best