Hey guys, I'm having some issues with bogging. Usually when I first start the car and go, even when its warm, it will be fine. After a bit though, it becomes a dog at part throttle and WOT. At about half throttle my EGT's climb up to 1400-1500 deg. I'm pretty sure the car is running rich at WOT, I know it is at part throttle, where the AFR is in the 10's. The EGT's are probably a result of the ECU pulling my timing back. My question is, why would it be doing that? I don't notice any knocks or detonation, and my plugs seem fine, if a little on the rich side. Could the knock sensor be getting a bad reading? Should I try advancing the timing to see if that helps? Any help is appreciated!

 

thats really high.

After we got off the phone, I was wondering.....

How far is your probe away from your downpipe? Or is it between the headers and the turbo?

 

Its right in the collector of the front manifold. I got the problem fixed though, I disconnected my knock sensor and put in a resistor. I know thats not really safe, but the timing is stock and I havent heard any knock. The EGT's now are 1400 cruising at 85mph, and drop to ~1300 WOT. The bogging is also taken care of.

 

you were right on your diagnosis. did you adjust fuel pressure?

 

what size resistor did you use

 

I did up the fuel pressure a little to be on the safe side, but I'm pretty sure its running on the rich side now. The resistor I used I think is a 570K Ohm, but I'm not positive.