Quote:
Originally Posted by pallen747
Hi all, Need some tech help.
I am using Autel OBDI unit. Have the below codes and read outs. I have replaced the Throttle body - no change.
P0121 says Accel pedal potentiometer.
P1121 says Throttle position sensor 1.
P1122 says Throttle potentiometer 2.
From what I have read it could be the throttle pedal potentiometer failed or DME failed?? Possibly earth to DME from MAF??
One is a PITA but cheap to replace - the other, well extremely expensive the MAF is just a guess.
Anyone else had similar? Any advice?
Thanks.
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Have you tried to re calibrate the throttle?
Disconnect the battery for a few minutes to reset the DME/ECU
Then turn key to on position for 1 minute do not start.
turn key of for 30 seconds.
then see if car starts.
The P1121 code is for the heater circuit on bank 2 post cat O2 sensor.
You have to be careful when looking up P-codes for these cars as they changed on some year models.
Usually when the DME/ECU was upgraded.
I see that it will not even start.
Sounds like you may have some wiring issues.
Can you give some background on the car?
Did it run in the past?
Was work done on the car before the no start issue?
Are there any mods to the car?
Has water gotten inside and under the drivers seat?