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P0305 Diagnostic Trouble Code Discussion for December 2004

Cylinder 5 Misfire Detected

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Trouble Ticket Help Requests for DTC P0305
Help Request Posted
1997 Ford Explorer Eddie Bauer 4.0L Poor Idle Quality VIN: 1FMDU32EXV
P0305: 5 cylinder miss. ... lower idle speed than I care for. It idles at about 650 with a 29% iac duty cycle. Also at idle the long term fuel trims are 10% for bank 1 and 19% for bank 2. At 1500 rpm the long term trims are -4% for bank 1 and +2% for bank 2. It runs well at higher sp...
December 11, 2004
1997 Ford Aerostar 4.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FMDA41X6V
P0305: Misfire cyl 5. Vehicle was brought to shop w/check engine lamp on .Scanned for codes found po305 po303 misfire codes present. Checked for spark at plugs,did coil test,checked OK ,all wires were routed correctly. Then suspected vac leak at plenum o rings,R&R upper o rings...
December 16, 2004