I have a Porsche cayenne 03 just recently when I start the car the PSM will show on the dash "psm failure" I can then turn the car off and this will away .... ? It can struggle to start and then the light shows again ...? Sometimes it will fire up fine with no light then when the car car is idle at lights it will cut out ..? I then turn it back on and it struggles to start with the psm light being displayed again ..? Any help will be much appreciated thanks
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I am still waiting for a answer ..?
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No forget now .... I would like a refund on my money this is a waste of time ...?