05HD

Alright, so it sounds like the next step would be to pull the throttle body and see if it has those extra holes you need to block so all of the idle air goes thru the correct port.

Formula WS6

iTrader: (17)

That's actually a very good point cause I was running a Nitrous works plate and switched out to a Nitrous outlet plate prior to this problem appearing. thanks for the suggestion, I'll pull it apart tonight give an update.

fyi it's a PP 58mm tb

guppymech

iTrader: (7)

Have you checked the back intake manifold bolts like mentioned above? I just pulled my intake and was shocked that half the bolts were finger tight.

Formula WS6

iTrader: (17)

yeah retorqued em last night and they were all fine. 3 were maybe a 1-2lb off cause I got maybe a 2 inch swing on a 20" torque wrench before it clicked. No difference.

ANTICOP RAM AIR

iTrader: (7)

lol.. I had a pretty good understanding but that did clarify some questions I had...

Rob

iTrader: (6)

Could the 6 and 8 injector connectors be swapped?

Formula WS6

iTrader: (17)

At first glance it appears 05HD is the winner.. Lol. I eliminated my nitrous outlet plate and my short term trims dropped to +\- 3% on bank 2 from + 12%. Pulse width dropped to 4.2 ms on bank 2 while 1 was at 3.9 ms. Long term dropped to 7% from 25% but I'm sure the remainder of the fix will be in new oil, plugs and potentially the o2 sensor. I ran the Car for 20 min and I even noticed when I brought the rpm up to a steady 2k, I was getting a lot less popping/ back firing out the exhaust.

Thanks everyone for your help. Now I don't feel Like selling it or throwing a LS in it.lol. I normally don't get frustrated but this was throwing me a curve ball thanks to aftermarket crap. Time to modify the plate and tb

guppymech

iTrader: (7)

So cylinders 2 and 4 were running lean and the O2 sensor picked it up and added fuel to the whole bank which made cylinders 6 and 8 run rich, correct?

Formula WS6

iTrader: (17)

exactly! This is why I love the LT community. I know Alot when it comes to repairing cars but reasons like this is why I will never claim to know it all.

ANTICOP RAM AIR

iTrader: (7)

nice....

95mysticta

iTrader: (4)

Glad to see everything worked out for you! This is why this forum is a love/hate thing

sweetbmxrider

iTrader: (13)

Glad someone was aware of the throttle body issue. Its such a bitch, someone should sticky it.

Alex94TAGT

Hey, I mentioned the TB issue in post #9!

Not to be petty, but I demand 10% of 05HD's victory winnings, so long as the victory winnings are jelly beans.

05HD

It is always easier to give useful advice when the person with the issue has some know how and provides a good description of what is going on! Also, there is always next week to throw an LS in when the opti starts acting up, lol.



Alex94TAGT- You can have some jelly beans, you typed a lot more than I did.

Formula WS6

iTrader: (17)

Sorry Alex, I've gotta give credit where it's do. Thank you as well.

robsquikz28

iTrader: (246)

bout time you figured it out.

ken125

iTrader: (3)

I have found out many times that there are very knowledgeable people in this forum!!! kudos!