Engine Rebuild/Code Problems- NEED HELP! Options

[ibanez6]

update 12/6 Car is running great! Thanks for all the help, added new knock sensor after fixing wastegate. Knock sensor codes gone as well as CEL is off.
Put on new coil pack, which solved the not re-starting when warm issue.
Thanks Again for all the help

UPDATE- After reading codes I got Codes 52 and 43
Hi,
Well, I have "inherited" my sons Celica problems. Some of you may remember the car. His screen name was Turboman23. It's a 95 Celica with 91 or 92 3sgte (not sure which at the moment).

I am trying to work on this with car with pre 1970 Chevy knowledge!
Anyways on to the history/problem(s): (Sorry for being so long)

He blew the engine. He had the bottom end rebuilt.
Dr. Tweak redid his wiring harness.
Check Engine light stays on.
When we read codes (can't remember number, sometime ago) it said Knock sensor.
He refused to drive it, has had my car for a year. I want it back. (sorry had to get it out)

I took it to a local import shop, they said they could not pull the codes, and that they had to pull them manually(???) and said the wastegate was bad causing knock sensor to "go off".

My son said they were wrong. And refused to work on it did not want to "chase parts" in trying to fixi it. He also said he did not know where to get a wastegate for it or if one was available. It has an internal wastgate.

So now to the questions:
Can a bad wastegate cause knock sensor code?
Any idea where to find one? Price?
Other reasons/fixes to correct code being thrown so CEL goes off?
Can the car be driven?[size="3"][/size]
Thanks for any help,
Lee

This post has been edited by ibanez6: Dec 6, 2009 - 8:53 AM

[Bitter]

pull the code yourself, all you need is a paperclip and to search here, infact its in the how-to's on the front page. your son is a dumb**** (sorry).

post the code, from there you can look up testing in the celica BGB's which are online at celicatech.

a stuck wastegate would cause the turbo to NOT vent and it would overboost and cause bad knock, you'd be able to see this on a boost gauge easily...he should have one to keep an eye on things..and a wideband...and some other gauges as well. infact bad knock from a stuck wastegate could have crapped his bottom end. what turb is on there? iirc the stock turbo's are internally wastegated...should be able to grab a used one from ebay or convert to a different turbo with an external waste gate (you'll need a different down pipe)