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P1451 Diagnostic Trouble Code Discussion for September 2006

Barometric Pressure Sensor Signal Range/Performance

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Trouble Ticket Help Requests for DTC P1451
Help Request Posted
1999 Ford Explorer XL 4.0L Hesitation, Stall, MIL Lamp on VIN: 1FMZUL4EXX
P1451: evap sys vent ctrl valve fault. This vehicle was towed in the shop . will idle perfect . put it in gear it idles , step on the throttle and it quits. Fuel pressure holds at 63 lbs. even when stalling . this also has a ton of codes in it mostly transmission related also has 4 HO2S HEATER CKT ...
September 07, 2006
2000 Volkswagen Cabrio GLS 2.0L MIL Lamp on VIN: 3VWDC21V7Y
P1451: secondary air injection sys circut. Believe problem in power supply to fuel injection system. Has anyone had a particular place to look? Customer has no complaint to runability problem, just check engine light coming on.
September 15, 2006