Code 31

[1badtgp]

On a TGP when you pull the codes, isnt this the overboost code?

[god910]

From GNTTYPE.org

 

CODE 31

 

Trouble Code 31 indicates that the Wastegate Solenoid may not be functioning correctly. The wastegate solenoid is controlled by a Pulse Width Modulated (PWM) signal from the ECM. The ECM controls turbo boost by varying the PWM waveform (duty cycle) to the wastegate. The wastegate responds by bleeding off exhaust pressure upstream of the turbine, thus controlling boost pressure.

 

The conditions for setting this code are:

 

the ECM is commanding a solenoid duty cycle of between 5% and 94%, and

no electrical feedback is being received from the solenoid, and

the above conditions are met for 2 seconds.

 

 

 

Typical causes for this code include:

 

1) Poor or corroded connections between the ECM and the wastegate solenoid

2) Open or shorted solenoid

3) Defective, sticking or maladjusted wastegate linkage

4) Defective ECM

 

Ensure correct operation of other engine subsystems, including but not limited to the TPS and MAF sensors and check the wastegate actuation hardware.

 

And from troublecodes.net

31 High turbo pressure (87 - 88 )

Jimsperformance.com (whoever the hell THAT guys is )

31 Manifold Absolute Pressure (MAP) Sensor - signal voltage is low

OR Fuel injector

OR CAM diagnostic

OR Governor Malfunction

OR Wastegate overboost

OR Wastegate Eletrical Signal - open or shorted to ground

 

[1badtgp]

Thanks! That was the only noe i couldnt find, but right before I did the diagnosis I did overboost the car, so that explains that one(vacuum line poped off wastegate).