The manual gearbox type will have NO baro / Map sensor . just MAF (inferred Baro) The auto gearbox type will have MAF sensor and a Baro / Map sensor. But the MAP / Baro sensor is used for the gearbox control and not the engine control.(that's how it reads to me Both manual and auto gearbox have a exhaust pressures sensor , that could be confused for a MAP sensor. So I reckon John's car today was a auto gearbox. Dave if your car is a auto gearbox the pins at the ECU are pin 91 - sensor ground So have a play with a signal generator and send a signal into the PCM on pin 34 and check your live data....... HTH Darren............
on September 17, 2007, 8:11 pm, in reply to "Re: Ford Scorpio 1996 2.0 16v Hesitant under load!"
Just been looking at some old training notes i have and just noticed there is a difference between the manual and auto gearbox vehicles.
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pin 90 - 5 volt reference
pin 34 - frequency input ( normal 158.5 Hz is 998Mbar)
