citroen c4 mev17.4.2

[ylie86]

Hello, I'm facing a problem. I have a Citroen c4 under repair, when the engine warms up, an error appears on cylinder 3, no ignition and the cooling fan starts at maximum, I tried to read the software but I can't do it either with ktag or kess, do you think as if it were ECU? series 0261s07189 Mev17.4.2. Thank you



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[Nexus1963]

I think it's a mechanical problem with the engine.
You can relocate the coil and spark plug from a working cylinder to be sure...

[ylie86]

hello, I replaced the coils between them and the error still came back, in the meantime I replaced the ecu and now everything is fine, thank you