Help- Secondary Air injection Valve A misfunction
Help- Secondary Air injection Valve A misfunction HI:
I'm getting trouble codes with my OBDII reader- "P0412 Secondary Air injection system Valve A misfunction" which is causing further code errors of P0171 and P0174 system too lean (each bank)
Today my car was even slightly misfiring (sounded like a hiccup).
I'm assuming this air injection system is an emissions related issue, but I wasn't sure where to post this.
Does anyone have any ideas on this? Is it a simple bolt on replacement part? Please let me know.
The engine is a 2002 LS1/ 6 speed trans from a T/A. I performed an engine swap into an '84 T/A and I have a smog certification appointment on Monday here in CA. If I can't fix it by this weekend I'll have to reschedule.
Thanks,
-BV
I'm getting trouble codes with my OBDII reader- "P0412 Secondary Air injection system Valve A misfunction" which is causing further code errors of P0171 and P0174 system too lean (each bank)
Today my car was even slightly misfiring (sounded like a hiccup).
I'm assuming this air injection system is an emissions related issue, but I wasn't sure where to post this.
Does anyone have any ideas on this? Is it a simple bolt on replacement part? Please let me know.
The engine is a 2002 LS1/ 6 speed trans from a T/A. I performed an engine swap into an '84 T/A and I have a smog certification appointment on Monday here in CA. If I can't fix it by this weekend I'll have to reschedule.
Thanks,
-BV
TECH Enthusiast
Joined: Jul 2006
Posts: 638
Likes: 0
From: San Diego
Code p0412 is specifically a problem with the AIR solenoid valve. Where as a code p1415 would be a mechanical AIR problem, you have an electrical control problem. Either the AIR fuse is blown, or the solenoid is bad, or the driver in the PCM is bad. Look for an electrical problem.
wow, Ok, thank you.
so much for certifying my car on Monday.
I called my local dealer and they sell the valves for this. Apparantly, there's 2 of them. I'll replace them both and see what happens.
Any suggestions for tracking down the lean condition? would you suspect the computer programming, or a mechanical failure of some sort? does this boil down to an old school spray starter fluid on the engine looking for a vacuum/ gasket leak?
since I got codes for each bank I'm guessing it's a main leak of some sort- something to affect each side.
any help would be appreciated. I am still new to the LS1 engine.
Thanks
so much for certifying my car on Monday.
I called my local dealer and they sell the valves for this. Apparantly, there's 2 of them. I'll replace them both and see what happens.
Any suggestions for tracking down the lean condition? would you suspect the computer programming, or a mechanical failure of some sort? does this boil down to an old school spray starter fluid on the engine looking for a vacuum/ gasket leak?
since I got codes for each bank I'm guessing it's a main leak of some sort- something to affect each side.
any help would be appreciated. I am still new to the LS1 engine.
Thanks
