Questions & Answers for: Jeep Wrangler fuel comp error

...fuel pressure regulator Just had the same problem, check OB comp, it all checked out, Checked sensors, all checked out. Checked my vacuum houses, hmmm a lil worn, some cracks, but pleny of vacuum in ...

...comp raises the idle to compesate.then the plug fires again and the idle surges. hope this helps jm the ecm rarely goes bad, if it doesnt do anything, such as start crank or fire than I would replace ...

...fuel is feed into carb via suction. Maybe you have a failing vakuum pump that's suppose to deliver the suction. If possibly have your error codes read via the OBD portal of your car, you can do this ...

...comp tool? mechanic thinks its tank level control problem. need advice . CODE PO463 IS FUEL LEVEL SENSOR FAULTY OR SENSOR WIRE HAS A SHORT. check the spark plug wires n on the ends of them they could ...

...fuel/air mixture. If there is no error code then it has to be the timing...it might be a stretched belt, where it has jumped a tooth, IF it is a belt as opposed to a chain or gear drive... this is ...

...comp comes up bank 2 sensor one also says burning lean, Try using brake parts cleaner and spraying around all vacuum lines on the engine and firewall, and spraying around the intake manifold gasket. ...

...comp says o2 senes b1 & b2 high voltage 250 km to a tank If the oxygen sensors on the vehicle are faulty then that could easily cause the poor fuel economy. Replace both of the O2 sensors and ...

...key, got DTC error codes, bingo. if not bad spark is bad coil or bad ignitor that drives said coil. next is fueling but above is all first. fuel is always LAST. (ECU cuts fuel for many reasons)

comp not showing anything wrong, checked cats any idea's I need help! nice facts, all, but no engine size options stated. after all it's an ENGINE question. you dont know whats there, and doing DIY>

I have a 1998 Jeep Wrangler and it is stalling out has a new fuel pump ever get a full 60k mile full tuneup this decade, no ? really? the first tests are,. is the ASD relay dropping out? and is there ...