Fault code.. P0201

The engine management light was on and use of an OBD tool identified P0201,'INJECTOR ONE COMMAND FAULT-OPEN CIRCUIT'...

After disassembly it was apparent that the o ring was very damaged . Euro Car Parts wanted £70 for a replacement injector...

After a visit to a local bearing factors I was able to replace all four o rings for £1...

O rings installed,fault code cleared ,job done.




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Thanks for the tip nikroc.

P0201 is an electrical fault, so the fault was probably cleared while disconnecting and reconnecting the injector connector.

Early cars had a fault where water drips through the washer jet hole, onto the injector plug, causing faults. Improved sealing washer jets can be found on eBay - here and are an easy fit.

As for o-rings, be careful that the material chosen is the correct material for the job its doing. Injector o-rings will require a particular type of rubber to give a long lasting seal. The universal packs of o rings may just not be up to the job. Not a critical o-ring disaster, but you may need to do the job twice


Injector fault caused by washer jet leak -Citroen C3 damage to the fuel injector from a leaking washer jet topic.

bugger...after being started and run at least 30 times since the 'fix' the EML has come on again!

The 'fault' had moved from injector 1 to 4!...externally sprayed with electrical contact cleaner and left...fault cleared and so far not come back. Im thinking of taking the loom off and inspecting/cleaning if,and when the fault re-appears and maybe getting a 'new' injector loom.

Think I have sorted this now,but time will tell...

On closer inspection of the injectors and more specifically their connection to the injector loom, no 1 injectors retaing clip was 'loose' to the point where it was possble to actually pull the plug off the injector, without removing the u shaped clip that should hold the pieces together.

No 4 injector was missing its retaining clip!

Trip to the local breakers and four more clips later its back together and once again running on all four.