|
Re: Secondary air injection system fault code?
The AIR system on this vehicle runs at cold start. The PCM runs a couple tests on the system to verify proper operation and air flow.
The DTC # would be the most useful information and tell us what test failed.
The AIR pump should pump air to the solenoid mounted above the exhaust manifold during a cold start.
The solenoid valve should not have exhaust gas "blowing back" into it with the engine running (usually 60 seconds after cold start)
Post the DTC........
__________________
Why do you never have enough time or money to do the job right the first time, but enough time and money to do it again?
Got all the certifications
25 years ASE Certified Master Technician
GM WCT
Yea..I work at a DEALERSHIP....got a problem with that?
Want to diagnose cars like the Pros? FOR SALE: OTC Perception 2 channel Labscope (badged as a Matco Reality)
This is my personal labscope that I use to diagnose waveforms, like new, comes with leads and training video
PM Me for details
|