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P1121 Diagnostic Trouble Code Discussion for February 2010

Electronic Throttle Control Actuator Malfunction

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Trouble Ticket Help Requests for DTC P1121
Help Request Posted
1999 Subaru Legacy L 2.2L Poor Idle Quality, MIL Lamp on VIN: 4S3BK435XX
P1121: Neutral Position Switch Circuit Low Input. hello to all. this subaru is giving me all types of trouble and need help! the customer tried to replace the head gaskets. he got the timing belt installed wrong and towed it to me. i put the belt on correctly and got the car to start. and finnished installing...
February 05, 2010