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Old 06-18-2026, 06:40 AM
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Scarebird Scarebird is offline
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Join Date: Nov 2002
Location: Moita, Portugal
Posts: 5,386
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May have finally solved a hot start issue that was driving me daffy. The motor would turn fine but would not catch when hot. After a bit it would start. Redid grounds to engine, all that.

A friend with a good PCM reader scanned the car, almost nothing but oil pressure faults (?). I have the stock gauges running so have a sender that notes pressure is fine. Then it occured to me that if the oil pressure signal to the PCM was low - it would not allow the engine to fire. If the sender was intermittently faulty when warm... So I looked at rockauto to see if anything over here would work - 2022-2023 MBG-GT would. A replacement was ordered (65€ - ouch!) and installed. A trip known to have this issue was driven and no more problems.

Evidently the original sender was crap right out of the box - a depressingly common issue now. The new switch looks more "correct" - note the plug lock is actually there...





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Last edited by Scarebird; 06-18-2026 at 07:01 AM.
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