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P1630 Diagnostic Trouble Code Discussion for May 2011

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Trouble Ticket Help Requests for DTC P1630
Help Request Posted
2001 Chevrolet Blazer LS 4.3L Poor Idle Quality, Stall, Poor Fuel Economy, MIL Lamp on VIN: 1GNDT13WX1
P1630: Security code. Truck came in with no-start. Needed secondary ignition replaced. (DONE) Once running, ran BADLY. Misfire codes for #3,#6 and P300. Installed new iinjectors. Performed compresion test (ok) one slightly low. Checked fuel pressure test.(ok) Still runs bad, WILL N...
May 12, 2011