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Old 02-01-2012, 12:24 PM
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Gibbmodoll Gibbmodoll is offline
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Join Date: Oct 2009
Location: Madley in Herefordshire Uk.
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Testing the pedal sensor.
There are 6 wires to test and to get at the plug you will need to remove the pedal it's self.

Here it is removed from the car.

There should be two ground cables and two supplys of 5v and two tracks.

Track 1 should be 0.8v to 3.9v throttle full open with the key on, running and blip, it must rise and look clean on a scope test.

Track 2 should be 0.38v to 1.9 to 2v throttle full open with the key on, running and blip, it must rise and look clean on a scope test.

If all is found to be ok check the throttle body wiring up to the ECU, we found this fault to be in the loom as it runs down from the EGR valve and down into an engine holding clip, the grey wire had brocken of in the loom at the bend.




If the fault is int: not all the time and will reset to no fault on a scan tool, try a loom wiggle test to see if the check engine light comes on, in this case it did and we could open the loom and find the break in the wire.
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