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P0204 - injector number 4
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enricosalad

Posted: Fri Jan 21, 2011 5:49 am

Joined: Jan 21, 2011
Posts: 1
Trade Rating: 0
Location: Oxford

I have the fault code P0204 - injector circuit malfunction, cylinder number 4. A common problem if I understand correctly due to water dripping on it from the windscreen washer jet.

Symptoms - at start-up the engine is firing on three cylinders (presumably number 4 is not working!), but after a mile or so of driving it starts to fire smoothly on all four again. IT ONLY MISFIRES WHEN STARTING UP.

So presumably the injector is not failed, at least not failed enough to not work all the time. Question is, what is the problem, and solution? New injector? Injector seal? Coil pack? Just let it keep doing it?

I have put injector cleaner through the tank, and squirted some stuff through the air intake, and sprayed WD40 all over the place 9in case it was moisture causing the problem), but no joy yet.

Wondered if this sounded familiar to anyone before I try to replace the injector (and probably break it totally knowing how good I am mechanically)


	E

dturbopeck

Posted: Fri Jan 21, 2011 6:57 am

Joined: Feb 11, 2010
Posts: 657
Trade Rating: +4
Location: newcastle upon tyne

u need 2 swop injector with another one on car and see if fault moves with it, if not mybe an wiring fault.

Lee

Posted: Fri Jan 21, 2011 7:01 am

Joined: Feb 07, 2010
Posts: 13077
Trade Rating: +65
Location: England

Could test the voltage and resistance with a multimeter

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