Running rich after engine install

[z284pwr]

I wouldn't be surprised if the Diaphram in the wastegate actuator is torn or the internal spring is broken now because of the bending and straightening (sp?).

Check the actuator solenoid the way TurboGTU said...should give you an idea what to look for next. I think I speak for all when I say...do not run the car with the wastegate actuator disconnected! Unless of course you are at high altitude like me and you can get away with it! :wink:

Yeah, i was going to try that next, and make sure all the sensors are connected, even though shouldn't it throw a check engine light if one of the temp/knock sensors aren't plugged in....

I have located a local turbo place that can get a wastegate actuator for me, so I may be getting that if we can't figure anything out....

Oh yeah, did I mention I'm at high altitude so running without it isn't causing any high boosting problems or anything like that....  :)

[maximage]

Instead of replacing that solenoid with another junk factory one, just get a manual boost controller, run a line from the nipple on the front of the turbo to the controller, and then from the controller to the wastegate. Make sure you have a good aftermarket boost gauge and set the spool. VIOALA!!

[z284pwr]

Update:

We took the car to be inspected/emissioned....it passed luckily, the idle speed wasn't low enough, but they fixed it, however, suspected a small vacuum leak even though they couldn't find one with the propain trick, but oh well, its passed and registered for another year, so we have time to dick with it.....anways, the new solenoid showed up, no fixed, so we are now going to be getting the new wastegate here shortly, atleast we know we have a brand new solenoid, and luckily with it unplugged still runs good, so I'm not worried about it yet....it will be back to normal eventually....

[TGPilot]

When I bought Waskie's TGP back a few years ago now...I could not get it to pass Colorado emissions. I replaced every sensor (I MEAN EVERY!! :shock: ), two injectors, plugs, and wires....it was much better...but still failed. I bought a bottle of that emissions pass additive...finally passed, but barely!  8)

These cars have a serious learning curve to them...but soon you and your Dad will know this car with your eyes closed. The more you do now the longer you will be able to enjoy a trouble free car. These cars are 15 and 16 years old respectfully...I have never purchased a car more than 5 years old that didn't have issues, and TGP's were some of the first true "computer controlled" cars GM threw out on the streets. 8)