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P0109 Diagnostic Trouble Code Discussion for March 2011

MAP Sensor Circuit Intermittent

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Trouble Ticket Help Requests for DTC P0109
Help Request Posted
2005 Ford F-150 STX 4.6L No Start, Stall, MIL Lamp on VIN: 1FTRF14W15
P0109: Map or baro pressure circuit intermitant. I have a head scratcher here. Customer was driving, said all was fine, stopped at a light where it died and wouldn't restart. Engine sounds like there is no compression on a cylendar or two. Will start if i clear flood it for a while then runs like total dog p...
March 08, 2011