IRVINEWS6

I recently did some logging and found that my bank 1 LTFTs go extremely poistive, like 20-25, between full throttle shifts and at deacceleration from WOT. However, at part throttle and idle the LTFTs are approx. -3 to -4 and stay negative all the way up to WOT mode, but when I shift bank 1 goes positive until locking at 0 for WOT again in 2nd gear.

Seems like something is wrong. What should I do? Is there an air leak on the bank 1 side, injector problems, or 02 problems?

Thanks for the help!

James

Billiumss

iTrader: (11)

Your header is leaking. When you let off the gas it can pull in fresh air and the computer thinks your going lean so it adds fuel...

IRVINEWS6

What can I do to check for header leaks? I guess I will check the bolts on the headers for tightness. Other than that, I don't know what to do.

Bank 1 is the diver's side, right?

Thanks

Navy David SS

iTrader: (13)

Irvine - I have the same problem - but with bank 2.

AND YES Bank 1 is Driver's side.

I haven't had the time to check the actual manifold bolts, but I have checked everything else. That is the only thing I can thinks of is the Headers are coming loose. Again not a biggy since the SS only runs at the track now . It hasn't effect the nitrous runs - yet.

David

IRVINEWS6

Today, I tightened all of my header bolts on both sides. None of them seemed to be really loose. Last time I bolted my headers on, I used a torque wrench. This time, I just tighted the bolts to what I thought was tight. I was able to tighted all bolts between 1/4 and 1/2 turn. Maybe I need new header gaskets.

While I was tightening the header bolts, I changed my spark plugs. They all looked good except for cylinder 8. This cylinder's spark plug had a lot of carbon build up on it. Maybe, that is where my header leak is at.

thanks again for your guys input!

James