Hey guys. Got a quick question on behalf of my dad. He has a 98 Cobra - no mods outside of long tube headers and off road exhaust (no cats). It is running rough, rich, and has a slight backfire at idle. The backfire is random and not constant.
We ran the codes and nothing showed up outside of the O2 sensors but they have shown a code since the exhaust was changed.
We have pulled the plugs and checked for a cylinder not firing and also checked the plugs to see if everything was firing and it appears to be.
Any suggestions where to look? Coil packs, ignition module, ??? Any help would be appreciated.
We ran the codes and nothing showed up outside of the O2 sensors but they have shown a code since the exhaust was changed.
We have pulled the plugs and checked for a cylinder not firing and also checked the plugs to see if everything was firing and it appears to be.
Any suggestions where to look? Coil packs, ignition module, ??? Any help would be appreciated.