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Hall sensor fault - diagnostics


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First off, well done to whoever has made this site, very cool.

Second: My car has suffered a major loss of power following a replaced head gasket. Diagnostics show a fault with the Hall sensor, but being a 94 VR6 it doesn't HAVE a Hall sensor. The fault cannot be removed by just resetting the system.

Any ideas as to what is wrong ?!

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Thanks guys, i think you're right and my 94 doesn't have a distributor. Looks like the car DOES have a hall sensor though, despite what VW garage say, so i guess the fault is with the hall sensor or with cam position sensor, as you say.

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  • 3 weeks later...

Hi again all. Had the whole hall/cam sensor thing looked into, and apparently although it is showing as a fault, its fine!. So are all the rest of the electrics. All he could tell me was that manifold vacuum pressure was very low - 10 inches instead of 18.

I have no idea what this means.

the original mechanic that replaced the head gasket and essentially caused the problem is sticking to his word and is taking the head off again on tues to see if he put it back together wrongly. Anyone have any advice for him?? :)

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