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On 1 Aug 98, at 18:52, John Clift wrote: > Ok, As I said before, > the throttle switch has four wires > the ECU has writtien on it - 914 2.0L 75-76 > * I also just say a number stamped into the narrow bottom side ( same > side where the wire harness goes in to it) number 531 > I have no idea what that means > also fyi > the motor is stock type 3 1600 > had it rebuilt so I know its a 1600, and stock > I put the pressure sensor back in it but its still running ok but poor > gas mileage, its a no good. > So I think i should not mess with what has been a great car ans just > replace the pres sensor with the 043 number i mentioned before. > It appear the po was nuts but it looks like matching stuff, > so peek performance can get me a new one for $250. steep but I think new > Bosch sensor is the way to go. > does that 531 number on the ecu make sense to porsche people? I don't know what the 531 means. You have never told us why you are "sure" that the old PS is bad. How did you reach that conclusion? Measure the charging voltage at fast idle at the voltage regulator. Tell me what it is. Jim - ******************************* Jim Adney, jadney@vwtype3.org Madison, Wisconsin, USA ******************************* ------------------------------------------------------------------- List info at http://www.vwtype3.org/list or mailto:help@vwtype3.org