Please help.. 2003 A3 2.0 fsi starting problem

Redjamie999

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Hi all, new to the group and desperate for help.. I have a 2003 2.0 fsi which has developed a fault .. was running perfect and then stopped.. the engine will start once and then never again until fault codes are cleared.. codes it throws are : camshaft position sensor G40 open or short to plus P1338 upper limit reached and: ppwerteain data bus missing message from.instrument cluster P1650..

So far we have replaced: camshaft sensor, crankshaft sensor, A.c. tonics have tested and reprogrammed ecu instrument cluster and keys bit problem remains.. runs on first start then nothing after.

Really need some advice / assistance

Many thanks
 
Check out Ross Tech fault codes as it give you possible causes off why your getting this and gives solutions to try