I have a 1997 Camaro 3.8L with a misfire condition. I have read a number of forums on this site about this issue but I haven't found one where the code changed.
Initially, the pulled code was P0303 which identified cylinder 3 as the culprit. I verified that I had spark, but noticed that the spark was not blue on a new plug. It was more like yellow orange. I swapped the coil packs but still pulled the same code. Although the plug wire looked fairly new, I put on a new plug wire to rule it out. The car ran great for about 30 seconds until the check engine light came back on. Now the pulled code is PO300 which is a random misfire. Obviously, the new plug wire had an effect, but I am not sure what do next. I plan on putting on a new wire set and changing all the plugs to AC Delco. If this doesn't solve the issue, I thought about changing the coil packs. Is there anything else I should focus on with the P0300 code?
Thanks
Initially, the pulled code was P0303 which identified cylinder 3 as the culprit. I verified that I had spark, but noticed that the spark was not blue on a new plug. It was more like yellow orange. I swapped the coil packs but still pulled the same code. Although the plug wire looked fairly new, I put on a new plug wire to rule it out. The car ran great for about 30 seconds until the check engine light came back on. Now the pulled code is PO300 which is a random misfire. Obviously, the new plug wire had an effect, but I am not sure what do next. I plan on putting on a new wire set and changing all the plugs to AC Delco. If this doesn't solve the issue, I thought about changing the coil packs. Is there anything else I should focus on with the P0300 code?
Thanks