ABF OBD possible crank sensor.
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I have a mk1 GTI running an ABF from a '97 Golf GTI. It is running standard MK3 management and injection. Car intermittently cuts out/runs badly. Changed plugs, leads, drained tank changed filter. I have the diagnostic port fitted, I have a cheap ELM 327 bluetooth OBD adapter the only app I have on my phone is Torque this does not recognise the protocol apparently. Can anyone recommend an app that works?
The reason for the above is that I suspect the crank shaft sensor is at fault. I have noticed that when the car is difficult to start the tacho does not move when cranking. I believe the ABF takes its engine speed from the crank shaft sensor if someone could confirm that would be great.
Also which crank sensor would anyone recommend?
Thanks in advance.
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Steve1973 do you happen to know what the correct trace might look like? peak to peak etc.
Can anyone recommend a brand of crank sensor. Or at least the ones to avoid!!!
Many Thanks
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Its a 3 wire hall effect type. I suspect I would see a pattern of 4 square waves. But as the fault is intermittent its a bit of a moot point.
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