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P1121 Diagnostic Trouble Code Discussion for August 2008

Electronic Throttle Control Actuator Malfunction


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Trouble Ticket Help Requests for DTC P1121
Help Request Posted
1997 Subaru Legacy Outback 2.5L MIL Lamp on, CEL flashing quickly
P1121: Neutral Position Switch Circuit Low Input. NEED HELP FROM A SUBARU GENIUS Complaint is that the MIL is on and the radio doesnt work now, but the car is running fine. As they didnt have an appointment I done a quick scan for codes thinking maybe it was just a loss of battery voltage or communication los...
August 11, 2008
1995 Ford Thunderbird LX 4.6L Poor Idle Quality, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1FALP62W9S
P1121: TPS inconsistent with MAF. Reading closed cases on similar cars, I believe this has a failed PCM. Here's the story... Cust. states engine stalled while driving and would not restart. I get the car on a hook, starts and runs ok. Drive the hell out of it, runs good, plenty of power. Get i...
August 20, 2008