1999 Chevrolet Suburban 1500 Q&A

1999 Chevrolet Suburban 1500 Question: SES light periodically comes on.P0300 B0226 B0222

P0300 B0226 B0222 AutoZone reading yesterday -
Answer 1
po300 is misfire codes and the other 2 are not listed in all data. i think the guy could not read b codes with the cheaper scanner and got ghost codes -
Comment 1
thanks...an a P300 means...what is the usual cause of the Po300 and why would it come and go? -
Comment 2
could be plug wires,plugs or items like that -
Comment 3
Thanks...had a major tuneup in 2010 which included spark plugs, wires, dist cap etc. -