Quote:
Originally Posted by 19963.4lsr5
The P300 is random multiple missfires. Probably from the P171 system too lean code. Look for cracks in the rubber intake trunk.
What is your warmed up idle rpm?
What is your MAF reading with a warmed up idle?
How old is your fuel filter?
Any exhaust leaks?
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Getting around to updating this. MAF sensor and throttle body were cleaned. Coil replaced on cylinder 1. All new plugs and wires. Still have the codes. My reader says MAF is 0.50 lb/min and fuel rate is 0.33 gal/hr at idle
The big black hose that the MAF sensor is on is looking a little old, do you know the part number for that? The one that also hooks to the throttle body.
Anything else I can troubleshoot with this? I just want the damn CEL off. I’ve put 10 grand into this thing in less than a year.