Questionbad gas milage and missing> have replaced both plug wires and ign coils, new cat converter, timing belt, ceankshaft sensor all in the last week . check engine light back on...reads all cylinder miss firing
AnswerIf all cylinders are setting misfire codes, suspect a fuel-related issue. The fuel pressure may be low or the fuel may be contaminated. Of course, if all cylinders are misfiring at the same time, the engine cannot run. Ultimately, it may be necessary for someone qualified to feel how the engine is running.
Answers to the following will help me understand what is occurring:
-- What specific diagnostic trouble codes are stored? I'm interested in the code numbers themselves.
-- Did you replace the spark plugs too?
-- Which catalytic converter did you replace-- the one at the bottom of the manifold or the one under the vehicle?
