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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
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