2000 ford taurus CEL won't turn off
I own a 2000 Ford Taurus Wagon which has the CEL light on yet no technician can obtain a fault code. The strange part that baffles them all is that the CEL goes off when you turn the headlights on. It makes no difference whether or not you turn them on day or night, the CEL light goes off.
Tried disconnecting the battery for hours and the minute it is reconnected the CEL is on again.
Have just spent about $2500 for small oil leak, rack & pinion leak and bad starter also had DPFE sensor replaced because latest shop said a code was read, had PCM reflashed. However now not even the techs can clear anything because there are no codes to clear!
Now the real kicker is that I live in NC and our yearly emissions inspection is due in 30 days. So before we pour anymore $$ into what is otherwise a great car we want to try to troubleshoot this ourselves.
We have been told this may be faulty instrument panel or PCM? Would simply replacing one of these for a vehicle that otherwise runs like a charm remedy the CEL problem?