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Topic: wiring testing (Read 539 times) |
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eff511
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wiring testing
« on: Feb 17th, 2009, 2:44pm » |
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hiya all still got problems the main question being i have three wires going to my crankshaft sensor (1998 2.5 td auto scorpio) and i have a voltage at all three of 0.12 v at one and 0.02 v at the other two this was carried out to check crank sensor as i had two codes of p0725 and p1226 knowing one was related to the crank sensor but i allways thought one of the three cables was power (true voltage supply i do not know) one earth and the other the return pip signal does anyone know either where i am going wrong on my testing or where else to go looking in the wiring loom for faults the wire colours at the plug are 2 black and green and 1 white and green cheers kev
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Snoopy
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Very old.BAD tempered and missing friends.
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Re: wiring testing
« Reply #1 on: Feb 17th, 2009, 2:52pm » |
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Have a look at the wiring Diagrams that might help details of what you want are on Page 2 Of THIS document
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eff511
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Re: wiring testing
« Reply #2 on: Feb 17th, 2009, 4:20pm » |
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quite informative snoopy but what i was really hoping for was some schematic diagrams so i could trace all wiring instead of opening the whole loom up
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Tompion
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1997 2.3 Ultima estate.
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Re: wiring testing
« Reply #3 on: Feb 17th, 2009, 9:11pm » |
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I don’t know anything about this but looking at the diagram posted by Snoopy entitled ENGINE CONTROL 2.5TDI AUTO.pdf
I assume it’s what’s called the engine speed sensor on page 4.
If it is (right coloured wires) the 2 BK/GN wires interconnect within the sensor.
The WH/GN goes to pin 8 of the PCM.
I would expect it to generate power, not be fed, but only guessing.
Dave
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ABS multiplug wheel sensor pins MK IV or MK 20
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