S&S 3400 header pinhole from the factory.

[blackbombshell95]

I had the hole welded shut today. Time to work on it next weekend.

[blackbombshell95]

I've noticed with the TCE TB's you should adjust the plate so it's just off of getting stuck in the bore. If you have the TB out you can feel the plate sticking when you adjust it that far closed, then just open it up till that feeling goes away then give it just a bit more. If you have it too far open it will cause high idle issues and the IAC wont be able to even stay open at idle. I've got mine setup pretty good right now and is open about 20-30 counts at idle. I could even go a little further open with my throttle plate and idle the same.

I'll give it a shot. thanks

[3400-95-Modified]

I've noticed with the TCE TB's you should adjust the plate so it's just off of getting stuck in the bore. If you have the TB out you can feel the plate sticking when you adjust it that far closed, then just open it up till that feeling goes away then give it just a bit more. If you have it too far open it will cause high idle issues and the IAC wont be able to even stay open at idle. I've got mine setup pretty good right now and is open about 20-30 counts at idle. I could even go a little further open with my throttle plate and idle the same.

[Alxsmt]

I dont think mine had a pin hole there. however, on the rear header where the crossover is welded to the primary, the weld literally fell out leaving a hole.. I hate s&s headers..

for your idle issue, try adjusting the idle screw. seems stupid, but I had idle issues for years. the guy doing my tunning couldnt tune out for anything, finally he adjusted my idle screw.. problem solved! IAC couldnt move fast enough to cure it. might be worth a shot

[pocket-rocket]

DIY


http://www.theturboforums.com/thread...=smoke+machine

That's pure win right there.

Sent from my HTC One X using Tapatalk 2

[ericjon262]

I'm talking with a few friends to try and get this pinhole welded by next weekend .

I <3 smoke machines :-D

DIY

http://www.theturboforums.com/threads/363900-DIY-smoke-machine-tester!?highlight=smoke+machine

[blackbombshell95]

I'm talking with a few friends to try and get this pinhole welded by next weekend .

I <3 smoke machines :-D

[Superdave]

Its right before the O2, which is going to throw off the readings. Makes sense to me that it fucks up in closed loop.

Agreed, seen it lots of times.


There may be other problems as well but getting a false lean signal to the o2 and flooding the engine with fuel will really piss it off.

and +1 for V bands, I will never again use anything else. worth every penny.

[blackbombshell95]

Nope, you are the only one with that cam.

geldartb has the cam.

[3400-95-Modified]

Stupid me, I also realized his hole is in the EGR bung, not the O2 bung, hence why I was wondering why there was no O2 sensor screwed into it.

[3400-95-Modified]

[Fireball]

Do you have pics of the setup 3400-95-Modified?

I don't want to thread jack at all but like the OP and anyone with S&S headers, it's always a war to keep the bastards sealed!

[3400-95-Modified]

Only other cam I ever had was a Milzy stage 1... My donut gasket was leaking all the time which is why I put a v-band clamp there and my O2 was actually in that bung and I never had issues. Are you running the ECU using the narrowband output of a wideband O2 sensor?

[SappySE107]

Nope, you are the only one with that cam.

[blackbombshell95]

The crossover donut was leaking also. I tightened that up a bit and its better now. IIRC 3400 modified you use to have the same cam correct?