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Are you having problems with your Porsche 944? Let our team of motoring experts keep you up to date with all of the latest Porsche 944 issues & faults. We have gathered all of the most frequently asked questions and problems relating to the Porsche 944 in one spot to help you decide if it's a smart buy.
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I haven't heard of this problem before and I would suggest it's a result of age rather than anything else. Because it's intermittent it can be hard to trace, but I would be looking for a faulty connection, perhaps one that's corroded or loose. I would take it to an independent Porsche specialist, or an auto electrician.
THEY'LL happily run on unleaded without an additive. The valve seats are the same in the pre-'86 engines as those built after the introduction of unleaded fuel. But you will need to run 98-octane fuel if you want to get the best out of it.