Chev. S10 6 cyl 2001 OBD11 code po300

Question

Engine is misfireing, intermittently when idleing. This has happened twice the past 10 days. Plugs and wires have about 80,000 miles. I suspect I need to replace plugs and wires, is there anything else I need to look at other than plugs and wires. OBD code PO300

Answer 1

Plugs and wires it's probably the best start, specially if you have not replaced the plugs in 80K miles.