20 Most Recent 2000 Mercury Cougar - Page 6 Questions & Answers

No , the DPFE regulates egr function. Check fuel shut off switch, usually in trunk, also check spark.

three screws hold the mirror on ,most cars are like this so i dont see why this one should be any different

Insufficient EGR FlowWhat does that mean?EGR stands for Exhaust Gas Recirculation. It is part of the vehicle emmissions system, and is used to reduce combustion temperature and pressure to control Oxides of Nitrogen. There are generally three parts to the EGR system: the EGR valve, an actuator solenoid, and a differential pressure sensor EGR (DPFE). These things work together to deliver the correct amount of recirculation based on engine temperature, load, etc. The P0401 code means that OBD detected an insufficient amount of EGR.

here are some good locations :

MAF mass air flow sensor out of range or dirty.

disconnect battery and reconnect will reset

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your ac compressor might be locked up remove belt and trun over and if it starts, then great, do not drive it tho with out belt on, i had this same problem,

with a ampmeter try to find out the current draw that discharge the batteryhope it helps

Did you test battery maybe cables are too corroded

I would test the fuel pressure. it sounds like it may be low.

You would check the white red wire going into the tank for reference voltage from the gauge, then see if the sending unit in the tank is grounding the circuit. You should be able to ground the wire going to the gauge and make it move.

main alternator cable (from alt. to battery).... i beleive there was a recall on some vehicles