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Eric Y.
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We (I + my indie) were unable to find any chewed wires, and the sensor was replaced with no change to the code. They're mostly a BMW shop, but do work on plenty of Porsches. I will check which scanner they're using. -
@Loren thanks for the welcome, I have read (likely all of) your responses on the subject. First, are you saying despite "Short to B+" being absent on the code as read by every scanner, that short may nevertheless still be the issue? Second, I'm at least 1.5hrs from the nearest dealer. Is there an alternative to the 9637 tool?
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I've been receiving this code and trying to run it down. The car runs as expected, and the only issue is that it is difficult to fill (pump shuts off almost immediately unless I fill it very, very slowly). It seems likely the two are related, but that's unconfirmed. In researching the code, it seems most have the "Pressure Sensor / Short to B+" code variant, not "Pressure Sensor / Switch High". The one post (6speedonline) that had a similar code was resolved by discovering a mouse ate the wires. That's possible, but I cannot see any evidence of this, and the circuit seems to be in tact (though if you have a testing suggestion, I'm all ears). With the code combined with the fuel fill issue, my working assumption is that it is the tank vent valve stuck closed. When researching that issue, I see that pretty much all results I found were folks encountering a valve that is stuck open - they get a whistle and maybe a CEL code for low pressure. Any advice, tips, or diagnosis methods?
