boost cut - Toyota Supra Forums

02-13-2010, 01:16 AM

mirage83

12psi boost

Join Date: Feb 2007

Location: Georgia

Posts: 359

Quote:

Originally Posted by 98poop

I have a 87 i shimed the wastegate and i get some sort cut out at 5 pounds help just read how to check codes there 34 43 now what

The ECU is telling you that it doesn't care for the shimmed wastegate.

Code 34
* The turbocharger pressure is abnormal.

Trouble Area

Turbocharger
Air flow meter
ECU
Intercooler system

Code 43 is something totally unrelated in all likelyhood.

* No "STA" signal to ECU until engine speed reaches 800RPM with vehicle not moving.

Trouble Area

Ignition switch circuit.
Ignition switch
ECU

Well, unrelated unless your ECU is going Tango-Uniform.

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