Citroen C3 Owners

Hello, Please help! I have attached a diagnostic report from the Lexia tool. The ECU was sent to two companies for testing and no- fault was detected. Changed ignition coil , temp sensor, speed sensor, injector loom, injectors, but still the car won't start. Tried to start with quick start it just idled for a few seconds then went dead again. All wiring has been checked. After idling for a few seconds it came out of eco mode. But still won't start.

Welcome to the forum mike323

P0201 Citroen C3

P0201 Injector or Injector loom short circuit to negative or open circuit if I read the lexia screen shot correctly.

I would suspect an injector, or the injector loom. There is a known fault where water from a leaking screen wash jet leaks onto an injector connection causing damage, the topic for this fault is https://citroenc3owners.com/petrol-c3/le ... -t584.html

mike323 wrote:Changed ignition coil , temp sensor, speed sensor, injector loom, injectors, but still the car won't start.

If you have changed all 4 injectors, the injector loom and tested the engine ECU, I would do a test to see if the ECU signal for the injectors is as Lexia says 'Injector or Injector loom short circuit to negative or open circuit' because there is more loom for the injector signal than just the injector loom. Use a multimeter to test the loom. Its suggested the loom is tested with a load, so also try testing for continuity with a 12v lamp and the battery.

mike323 wrote:All wiring has been checked.

You checked the continuity to the injectors from the ecu plug?
You checked for a short to negative on each of the injector control lines?

P0223 Citroen C3

P0223 Accelerator pedal sensor signal 1 Short circuit to positive

Faulty throttle pedal or loom. Have you tried replacing the accelerator pedal? The engine won't run if there is an TPS (throttle position sensor) fault. Similar issues here https://citroenc3owners.com/petrol-c3/1- ... t1133.html including the advice to check the wiring behind the dash for the LHD conversion plug fault.

Thank you I will certainly retest again