Before reassembling the exhaust system, I ran the motor up to 3500 RPM in neutral in a quick flash to make sure everything was cleaned out. The motor slowed back down as soon as I let off, but the tach continued to go up and stopped on the peg and seems to be stuck there. Restarting has no effect. ACTRON pocket scanner shows no codes.

I'm not worried about having overreved the motor and hurt it since I doubt a flash to 3500RPM would hurt anything, but the tach being permanently pegged is obviously a problem.

Any thoughts?

Thanks,

DOC

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2005 KJ CRD Ltd Detroit TrueTrac Bilsteins G2 GDE "HOT" ECU GDE TCM "Tow Tune" "euro" TC SEGR Weeks Elbow New HG at 130K ARPs Clean CAT aFe Filter Magnaflow Exhaust EHM Cumminos In-Tank Lift Pump Hayden Fan Clutch Nylon Fan VH Enabled with GDE lower shutoff point Recalibrated Temp Gauge Tekonsha Prodigy Sears P-1 ZDDP

Have you tried disconnecting your battery for a while?

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The problem is mostly confined to the guage cluster its self, remove the guage cluster, remove the clear face, and gently push the tach back to zero, reinstall and check for normal operation.

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Or try a guage test, with the key in off position hold down the reset button and switch the key to on then release the reset button. A gauge test should now be performed. That "might" help you out before you disassemble everything.

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Silver 2002 Skoda Fabia TDI, 235,000km
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After several more start/stop cycles, it magically wound itself back to where it belongs. Thanks for all your input.

DOC

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2005 KJ CRD Ltd Detroit TrueTrac Bilsteins G2 GDE "HOT" ECU GDE TCM "Tow Tune" "euro" TC SEGR Weeks Elbow New HG at 130K ARPs Clean CAT aFe Filter Magnaflow Exhaust EHM Cumminos In-Tank Lift Pump Hayden Fan Clutch Nylon Fan VH Enabled with GDE lower shutoff point Recalibrated Temp Gauge Tekonsha Prodigy Sears P-1 ZDDP