98 Silverado, 383ci, upgraded spider, full length headers, no cats, no egr, black bear ecu. Long term fuel trim bank 2 is 25-30 at idle and I get po305 code or po300 code. New plugs, wires, distributor. Any suggestions?
Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.
What does "25-30" mean? Is that a percentage?Long term fuel trim bank 2 is 25-30 at idle
Pull the plug out of #5 to check for fouling?and I get po305 code or po300 code. New plugs, wires, distributor. Any suggestions?