Installed zzp intercooler, zzp charge pipes, k&n Sri, and forge bpv put yellow spring in, car was stock except for trifecta tune 21 psi can anyone help lol

 

Common wastegate issue...




#09-06-93-004: Intermittent MIL/Check Engine Light On, DTC P0299 or P0234 Set (Adjust Turbocharger Wastegate Actuator) - (Jul 21, 2009)


Subject: Intermittent MIL/Check Engine Light On, DTC P0299 or P0234 Set (Adjust Turbocharger Wastegate Actuator)


Models: 2008-2009 Chevrolet Cobalt, HHR

2008-2009 Pontiac Solstice GXP

2008-2009 Saturn SKY Redline

2008-2009 Opel GT

2008 Daewoo G2X

with Engine RPO LNF and LDK (Europe)

Please Refer to GMVIS




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Condition
Some customers may comment that the SES light is on. Upon inspection, you may find DTC P0299 (Turbocharger Engine Underboost) or P0234 (Turbocharger Engine Overboost) set.

Cause
This condition may be caused by a mis-adjusted wastegate.

Correction
Note: The wastegate adjustment is sometimes a very fine process. When adjusting the wastegate, only small adjustments should be made. Loosen one nut at a time and only adjust the nut one turn at a time; then tighten the other nut against the shaft and test drive to verify. This may have to be performed several times to achieve the desired boost level. To ensure proper adjustment, the vehicle should be at full operating temperature when testing. The vehicle will be very hot and may need to cool between adjustments. Too large of an adjustment can cause repeat DTCs.

Adjust the turbocharger wastegate. Refer to Turbocharger Wastegate Actuator Adjustment in SI.

Troubleshooting Tips for DTC P0299 - Turbocharger Engine Underboost
To increase boost, adjust the nuts (in) towards the actuator; in essence making the shaft shorter.

Troubleshooting Tips for DTC P0234 - Turbocharger Engine Overboost
To reduce boost, adjust the nuts (out) towards the end of the shaft; in essence making the shaft longer.

 

Could the yellow spring cause it?

 

I've never heard of anyone having an issue with either spring from the Forge BPV kit... so I'm doubting it.

Did this happen directly after you installed it?

 

Yea right after I installed everything maybe tune related

 

You got the tune at the same time, too?

Swap out the spring to see if that helps. If not it might still be the wastegate actuator as it might have become misadjusted while tuning and driving around.

 

Not sure on this, but i read somewhere about people installing the spring incorrectly and getting problems

 

I was just thinking the same thing... or installing the BPV upside-down..

OP, is the opening for the BPV you stalled facing up or down?

It needs to face down.

 

To the side lol

 

?

Explain.

The slot should face towards the ground when installing the BPV to the turbo.

 

You mean the fitting where the vacuume line connects to?

 

On the forge, there is a hole in the side of the plunger bore. Face that downward. See pic below to understand why.