I posted this elsewhere and got no response, so thought I would check over here to see if anyone else has seen this error code. My 2010
Boxster S
6-speed throws code 7103, "crankshaft sensor upper limit value exceeded". Normally, there are no issues and the car never throws the code during driving short or long trips. But one day I decided to rev it out to the limiter... it felt like it hit a hard limiter somewhere around 7000 rpm (wasn't in sport mode, so I thought it should be a soft limit at around 7400-7600 rpm). Then the dash said "reduced power". I drove it a but further and it threw a PSM error and then would barely even roll away from a stoplight. However, cycling the ignition cleared the PSM error. Anyway, I can duplicate the 7103 error consistently by revving it out near redline, and so long as I cycle the ignition shortly afterwards, there is never a PSM error. So I believe the PSM error is spurious, and a result of whatever is causing the crankshaft signal error.
I have two ideas for what might be causing it:
1. Bad/old flywheel. I would expect noise or something as the dual mass fails, but I hear no strange noises. What should I be looking for if the flywheel is beginning to separate?
2. Bad crankshaft sensor. But if the sensor is truly bad, then wouldn't it cause other issues?
Maybe I'll just go ahead and order a new sensor. Does anybody know where it is located on the engine on the 9A1?
Hello Wulfgang,
Did you end up replacing the sensor and did it solve the issue? I was amazed that no one else seems to have had this issue. Your threads are the only ones I could find.
Thanks!
Neither the sensor nor the flywheel are bad. At the time that I posted the issue above, I thought that the Durametric tool tells exactly what the
DME
is reporting as an error. However, I later learned that Durametric does not always read the
DME
correctly and possibly doesn't even know how to read many of the codes properly for the 9A1. Durametric is cagey about this, but you can find instances where other people with
997.2
and
987.2
have had similar issues reading codes, but where the
Porsche
dealer had no trouble reading the correct ones.
This seems to be another case where Durametric is reporting nonsense, which makes it pretty worthless to me. I don't need a $300 tool whose only reliable function is to reset the service reminder (actually, that's not even reliable). In this instance, where I definitely need help diagnosing, the Durametric falls flat on its face.
I have an appointment with the dealer to diagnose this and will report back in a few weeks (local dealer has long backlog).
I should clarify... the local dealer does not have a 5-month backlog! But I just started driving the
Boxster
again now that it's warm here, so I just made the appointment last week.
So the
Porsche
dealer gave you a different code? What did they say? I wasn't aware the tool wasn't good for the 9A1 engines but good to know because I was planning on getting it.
Sorry, forgot to post back. The dealer didn't give me the code number; something about camshaft out of range IIRC. The chief tech said something about a slipping camshaft sensor ring (not the sprocket) that he had seen on some cars, which requires replacing a camshaft. Since I didn't know the history of the car (bad purchase, my fault), and I didn't know how deep this rabbit hole was going, I decided to trade it in.
