Hey guys, I'm still having fuel issues (about 12 mpg) but today my CEL came on.

Ive got:

P1537- IMRC (Bank 1) Stuck Open
P1538- IMRC (Bank 2) Stuck Open
P0704- Clutch Switch Input Circuit Malfunction
P0174-System Too Lean (Bank 2)

Any ideas/suggestions what to do or where to look?

 

Does your laptop and software confirm the IMRC is stuck open?

Reason I ask - I threw an IMRC code a few months ago and nothing was wrong with the IMRC, it needed plenum gaskets and isolator bolts.

You still got the tune in there or are you running stock?

 

Good thinking- I'll go check that. I'm running an 87 street but when I go out I'll clear the codes and reset to stock