P0121 Citroen c3 pluriel - Throttle Potentiometer signal

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muresan504
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Joined: 08 Jan 2021, 23:35

P0121 Citroen c3 pluriel - Throttle Potentiometer signal

Post by muresan504 »

Hello, can you help me with the diagnostic procedure for this code? The owner tried a scrap accelerator pedal and has the same problem.
VF7**************[VIN obfuscated, can be read by forum staff]

The problem appears from time to time, so it is not always.
Susoectez ecu. I had a similar problem with the ecu on the c3 from 2002, the ecu does not correctly adjust the regulator on the high pressure fuel pump and the same only sometimes.
Symptoms: heavy acceleration
Strong vibrations
Check engine on
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Last edited by myglaren on 18 Apr 2023, 21:25, edited 1 time in total.
Reason: Image rotated.
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GiveMeABreak
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Re: P0121 Citroen c3 pluriel - Throttle Potentiometer signal

Post by GiveMeABreak »

Please Don't PM Me For Technical Help

Marc