mrbelvedere

iTrader: (3)

yea i got it at the dealer they had to order it un hook the vac hose to it and se if ti holds boost if it does replace the solenoid

BlueSS/SC

Thanks, im going to try that

jonathan923

iTrader: (2)

hey man i had the same issue along time ago and it was specially at high rpms i would go from like 17psi down to like 11-12ish and lose alot of power...my problem was that the water pump was bad and the car was running really hot so the computer was cuttin boost drasticaly cuz of the hot temp. keep us posted...

BlueSS/SC

Alright lm bring this back to life cause the problems still continues...

So l intalled my interceptor and my pump is working, IAT2 goes does down once l start driving

but now l know l knock, and lm misfiring like crazy at idle. So im in the markert for a better tuner!! The guy that tuned me is a useless tool

Chevycobaltss3

iTrader: (2)

Well about your idle, with 60s bro youll have a type of mifire, it is really hard to tune them because of there short pulses. one thing to for your knock, see why, fuel, timing, iat2z. but more then likly it is your timing. let us know how it goes

rnjmur

Yeah, tuning the misfires out when you have 60s is almost impossible due to their min short pulse width. As long as it doesn't misfire when driving you should be fine.

As far as knock goes, were you tuned with a wideband? How much timing is being commanded when you are getting knock? Alot of times with a 2.8 you have to run a little richer due to the extra heat it is creating unless you are running meth.

Chevycobaltss3

iTrader: (2)

exactly i second that one, i run a 11.3 at top end and i run a 12.2 at bottom end. but check timing, i bet since it got warmer you started creating knock because your iat2s and high timing. or plugs could be bad

BlueSS/SC

I was thinking about changing the plugs, the misfire is only at idle but l have had a few CEL while l was driving
I was tuned with a wideband, l have been re-tuned by this guy at least 3-4 times..Im not sure what my timing is set at??

Im getting re-tuned april 17 or 18th so we will see he can fix it, plus im installing my h/e and dual pass asap

Keep you guys posted

Thanks for your ideas

BlueSS/SC

Alright! Im fed up with my tune and how these 60's run so im going gm stg 3... For me its the best solution

shroogis

iTrader: (1)

You could order an OTT pcm for your mods. I know canned tunes aren't "ideal", but it's pretty damn good!

Backdrift

Everything rnjmur has said so far is 100% true.

BlueSS/SC

So l found a trifecta dealer near by... lm heading in that direction and we'll see how it goes