Boost leak
- Thread starter arrivalblue
- Start date
I think you can try to blow on the solenoid to see if its restricted!
Need to verify it's getting the proper voltage and inspect for any loose or corroded connector coming from the solenoid......
I was able to access and paste one of the PDF! I hope this helps any. Z
PDF Below for reference....
Turbocharger/Supercharger Boost Sensor A Circuit Range/Performance
Description
This DTC sets when the TCBP PID does not correlate with the BARO or the MAP PID.
Possible Causes
Damaged turbocharger boost pressure (TCBP)/charge air cooler temperature (CACT) sensor Contaminated or blocked TCBP/CACT sensor Slow responding TCBP/CACT sensor
Diagnostic Aids
Check the intake air system for leaks and restrictions.
The TCBP/CACT sensor is a dual function pressure and temperature sensor located on the intake air tube between the charge air cooler (CAC) and the throttle body.
Action
GO to Pinpoint Test EA
This pinpoint test is intended to diagnose the following: intake air temperature (IAT) sensor (12A697) turbocharger boost pressure ( TCBP )/charge air cooler temperature ( CACT) sensor (9F479) manifold absolute pressure ( MAP )/intake air temperature 2 ( IAT2) sensor (9F479) powertrain control module (PCM) (12A650).
https://drive.google.com/file/d/0B8JUL90DXgdidFg4ZmN6SzF3cVVueGo2TFNSNUtfamJPcllN/view?usp=drivesdk
Need to verify it's getting the proper voltage and inspect for any loose or corroded connector coming from the solenoid......
I was able to access and paste one of the PDF! I hope this helps any. Z
PDF Below for reference....
Turbocharger/Supercharger Boost Sensor A Circuit Range/Performance
Description
This DTC sets when the TCBP PID does not correlate with the BARO or the MAP PID.
Possible Causes
Damaged turbocharger boost pressure (TCBP)/charge air cooler temperature (CACT) sensor Contaminated or blocked TCBP/CACT sensor Slow responding TCBP/CACT sensor
Diagnostic Aids
Check the intake air system for leaks and restrictions.
The TCBP/CACT sensor is a dual function pressure and temperature sensor located on the intake air tube between the charge air cooler (CAC) and the throttle body.
Action
GO to Pinpoint Test EA
This pinpoint test is intended to diagnose the following: intake air temperature (IAT) sensor (12A697) turbocharger boost pressure ( TCBP )/charge air cooler temperature ( CACT) sensor (9F479) manifold absolute pressure ( MAP )/intake air temperature 2 ( IAT2) sensor (9F479) powertrain control module (PCM) (12A650).
https://drive.google.com/file/d/0B8JUL90DXgdidFg4ZmN6SzF3cVVueGo2TFNSNUtfamJPcllN/view?usp=drivesdk
arrivalblue
New member
Did another pull on lunch today the wastegate percentage was 79-80 instead of 0 like pulls yesterday. Strange.... makes me think everything is good until warms up then either maybe a wastegate or the solenoid starts to stick a little. Off to see if can find one! And thanks! I’ll try to inspect and clean them all!
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arrivalblue
New member
Yea that’s the plan here in about 20 minutes plus remove and spray all the sensors with cleaner. Dealership said they would flash it with tune may sort out issues..... lol I’ll wait to fix them first. Attached is a log with car wanting to build boost from today.... frustrating lol
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