Ok over the weekend I installed an APS TMIC the older version. Now today just driving down the street the cel pops on and I pull over to check the code. I believe it was the PO171 lean A/F code.
Would the IC alone cause me to run a little lean? Or should I be looking for a hose that is leaking? Car seems to run fine haven't heard any knock. I think I'll switch to econo mode for now just in case.