hey guys, truck wasnt running 100% and acting a little weird so I went ahead and swapped out the plugs and wires, put in a set of new BR7 plugs gapped at .25 and new short ac delco wires. The truck had tr6 plugs installed gapped at .30 and short ac delco wires. Not sure if that made or makes a difference or not. Anyway, the truck seems like its having trouble idling...when it does idle, if you give it even the slightest but if gas (only reved to 1000rpms) it just revs and dies, does that at any rpm... plugs and wires are new like i said and Fp guage shows 52-56psi... any ideas?

 

Any vacuum leaks??

Throttle body issue maybe, or IAC problem??

 

I swear i hear a vaccumm leak on top of intake manifold but i dont see anything. Is is supposes to make a vaccumm like noise on top on manifold? Unsure on tb and iac. Boost gauge reads 20 vaccumm

 

You could try a smoke test to figure out if you have a leak.

If you have a fog machine or something that can make smoke, just plumb it into a vacuum line and let it fill everything, you will see where it is coming from. Be it intake gaskets, a vacuum hose or maybe part of your turbo kit (if you sig is correct) is not workng like it should.

 

Hmmm. I don't have anything like that. Id probably have to take it somewhere for that

 

re downloaded bb tune and its fine...weird