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P1151 Diagnostic Trouble Code Discussion for March 2012

Electronic Throttle System Sub Accelerator Position Sensor 2 Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1151
Help Request Posted
2003 Ford E-250 4.2L Poor Idle Quality, Stall VIN: 1FTNS24263
P1151: oxygen sensor B2 S1 lean. Have replaced isolator bolts and gaskets 2 times. Fuel pressure is 42 psi. Baro pressure was 60 kpa and freq 125 Fuel trim was +18 B2 and had mis fire codes for all cylinders except no. 5 After replacing plemnum gaskets baro was90 kpa and 147 freq. When first ...
March 05, 2012
2003 Ford E-150 4.2L Poor Idle Quality, Hesitation, MIL Lamp on VIN: 1FTRE14253
P1151: H02s21 indicates lean. Hey Crew, Going a little bonkers. Have this van as described with codes as described. The van is relatively new to myncustomer. He says it has been running a little ruff since he got it. Vehicle would stuble under part throttle but WOT cleared it up. First...
March 06, 2012