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]

http://www.extreme-check-engine-light-code...1%20Decoder.htm

Code 43 No starter signal to the ecu

Code 52, 53 and 55 Knock sensor fault

When the engine is not cranked, DTC 43 (starter signal) is output, but this is not abnormal.

it could be a bad knock sensor, i've heard of them going 'deaf' due to very loud/high knock caused by improper tuning/too much boost. i would start with just throwing a knock sensor at it and driving it gently out of boost. you can just coathanger the waste gate open if it is stuck closed or the vacuum modulator is bad. unhook his boost controller from it, that could be the cause of his problems actually. plumb the wastegate up like how it should be.

[ibanez6]

http://www.extreme-check-engine-light-code...1%20Decoder.htm

Code 43 No starter signal to the ecu

Code 52, 53 and 55 Knock sensor fault

When the engine is not cranked, DTC 43 (starter signal) is output, but this is not abnormal.

it could be a bad knock sensor, i've heard of them going 'deaf' due to very loud/high knock caused by improper tuning/too much boost. i would start with just throwing a knock sensor at it and driving it gently out of boost. you can just coathanger the waste gate open if it is stuck closed or the vacuum modulator is bad. unhook his boost controller from it, that could be the cause of his problems actually. plumb the wastegate up like how it should be.

Thanks Bitter,
I will give that a try.
I should have mentioned the 43 is probably because he has a push button wired up to start the car-thats going to go.
When you said "plumb the wastegate up like how it should be." I am not sure what you meant.
Thanks