Gentlemen (and women),
1998 Ford Taurus SE, 3.0L OHV, 130K miles.
I do not know if it is Flex or non Flex fuel.
I believe it has ORVR (onboard refueling vapor recovery).
The car has a high idle (1100-1500 rpms) and it up shifts badly and feels like
it is slipping between all gears. The final downshift when coming to a stop is
always a clunk. The engine however runs good. No codes, except for an
I scanned the BCM and at KOEO it shows 18% TPS. This is true if the TSP is
installed or unstalled in the car. I tested the TPS both on the car and off and
it is good. The TPS connector has 5.1V supply. Operating the TSP by throttle
pedal with the connector backprobed and KOEO yeilds .9V at closed throttle and
4.6V at WOT.
I also checked the wiring for grounding at the BCM connector at pins 89, 90,
and 91. Also there is no shorting between pins 71 and 89.
How can I determine that the BCM is the correct one for the car. See
http://www.glocktech.net/b/ for BCM lable. It is possible that the engine was
replaced sometime before I bought it.
I bought a reman Cardone BCM for O'Reilly's (78-8250) based on the data from
the BCM label on the existing unit and the Calibration label in the engine
compartment. BUT, the car still showed 18% TPS at closed throttle, and the
transmission REALLY shifted badly or not at all. Plus the A/C quit working. I
took it back to O'Riellys and put the old BCM back in.
Any advice would be greatly appreciated.