Ok, I did the things you suggested, thanks. Plugs/wires look good. MAF clean. No vacuum leaks found.
After some more diagnosis I replaced the PVC valve (oil in the throttle body), and the DPFE sensor. I reset the ECU, and ran it thru a couple warmup cycles. Now all the original OBD codes are gone, but now it's giving me a P1131 O2 sensor detects lean.
The car runs great cold, but when warm it idles badly in gear, and dies when put into park. It has plenty of power at higher RPM, but occasionally coughs at constant throttle.
So what now? Throw $65 at an O2 sensor? Or throw $100 at a repair shop to find the stinking vacuum leak that must be there somewhere?
Originally Posted by R.S.LOGAN
First thing I would check would be plugs and leads , check / clean MAF sensor and check for any vac . leaks from hoses .