just wondering would a bad exhaust valve cause an engine to show a misfire in the data screen but not set a check engine light in a 97 chevy p/u with a 7.4 and what part of the system reads the misfire is it a wasted spark or fuel or what???
just wondering would a bad exhaust valve cause an engine to show a misfire in the data screen but not set a check engine light in a 97 chevy p/u with a 7.4 and what part of the system reads the misfire is it a wasted spark or fuel or what???