Q: DTC misfire on cylinder 3 on 1997 Pontiac Firebird

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
CEL came on steady, then began flashing for short periods... while flashing car ran very rough and wouldn't accelerate well. Almost acted as though running out of gas. Then in 20 seconds or so would be smooth while light was steady.
When checked the diagnostic code was DTC misfire on cylinder 3.
(3) Answers
What engine 3.8 or 5.7? The ignition systems are different i think. On the 3.8 6 coils. On the 5.7 distributor system. I think!
Could be a bad coil on 3.8 or plug or wire if lntermittent spark. Cold be cap wire or plug on 5.7. Again if spark is the problem.
| |
you obviosly have a misfire on #3 and like is flashing to tell u you may damage catt so seek a diag and est or repl # 3 plug and see what happens
also check for spark to # 3 as needed and if it has spark check compression? If plug is oil fouled , it may have other internal problem?
Qualified Local Pontiac Shops
Qualified Pontiac Shops For This Repair
Didn't find what you were looking for?