Ford Error Codes

[Scott Shotton]

Billy_McCord at whittman-hart.com wrote:
> 
> Greetings,
> 
> I have a 93 Ford Tempo 140 4 cyl auto, that is experiencing a visit from
> the "Check Engine Soon" light

The most common problem with this particular EGR system is the PFE
sensor.  It senses exhaust backpressure change in the tube leading to
the EGR valve.  Plugged cat can cause a bad reading, but a PFE is more
likely and probably cheaper than a cat.

Any ford questions, let me know.  I was a Ford tech before I was
independent.

Later 
Scott