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P0654, P0748 and P1644 codes

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Old 12-29-2003, 07:21 AM
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Default P0654, P0748 and P1644 codes

what is it and how can I fix it.
Old 12-29-2003, 03:10 PM
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ttttt
Old 12-30-2003, 06:12 AM
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Ok the P0748 i think because i have TransGO Shift Kit.

How about the P0654 Engine RPM Output Circuit Malfunction and the P1644 Fuel Pump Speed Control Circuit Malfunction how can i fix it ?

The problem is when i start the engine the RPM go down and tern off
so i need your help... ?

Thanks
Adnan
Old 12-31-2003, 09:06 AM
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Any one can help me ?
Old 12-31-2003, 09:08 AM
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Originally Posted by oOoLy
Any one can help me ?
The car is corvette A4



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