Engine starts good. Idles good at 1000 to 1500 RPM. At 1500 starts missing. After 30 seconds runs OK at 1500. Raise to 2000 RPM. Starts missing. After 30 -45 seconds runs good. Raise to 2500 RPM. Starts missing. After 30-45 seconds runs good. Raise to 3000. Starts missing. Sometimes after 4-5 minutes starts running good, sometimes don't. Turn off engine. Started again after overnight. Same sequence. Started again after 4 hours, ran good immediatly. Started again after 2 hours. Missing as in initial sequence.
Started 30 minutes later. Running good at all RPM's. New plugs set at.040. New coil/distributor cap. Timing set at 8 deg. BTDC. Plug wires OHM'd at 6.5K to 11.2K.
No hose leaks found. Originally no engine codes. After unpluging MAF while engine running, now have codes PO100, PO3400, P1320. Can't get codes to erase with my code scanner so I can recheck for new codes. I'm baffeled. Help.
Wednesday, December 19th, 2012 AT 3:04 AM