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P1664 Diagnostic Trouble Code Discussion for March 2006

Skip Shift 1-4 Upshift Lamp Control Circuit Malfunction


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Trouble Ticket Help Requests for DTC P1664
Help Request Posted
1996 Chevrolet Caprice Classic 5.7L trans shifting VIN: 1G1BL52PXT
P1664: 1-4 skip shift. have a jaguar conversion with a 1996 caprice engine and transmission installed, has aftermarket wiring harness for pcm and trans. problem seems to be mostly trans related, can manualy shift from 2-3 even though shifter will pull down into 1st, cannot tell any ...
March 20, 2006
1996 Chevrolet Caprice Classic 5.7L trans shifting VIN: 1G1BL52PXT
P1664: 1-4 skip shift. have a jaguar conversion with a 1996 caprice engine and transmission installed, has aftermarket wiring harness for pcm and trans. problem seems to be mostly trans related, can manualy shift from 2-3 even though shifter will pull down into 1st, cannot tell any ...
March 20, 2006