Description
Opel engine control unit repair, the error Throttle valve malfunction (P1550) is frequently displayed
– P0120 Throttle potentiometer
– P0100 Mass air flow sensor voltage high
– P0351 P0352 P0354 – Ignition coil 1 circuit malfunction
– P0201 P0204 P0202 P0203 – Injection valve fault
– P0325 Knock sensor defective – circuit no signal
For other errors, please feel free to contact us
The following symptoms may occur
– Engine indicator lamp lights up
– the engine stalls sporadically or no longer starts
– Engine goes into emergency program
The control unit no longer needs to be programmed after the repair
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