my audi a2 1.4 error codes

D

derron1

Member
16586 P0202 Cyl.2, Injector Circuit Fault in electrical circuit
16585 P0201 Cyl.1, Injector Circuit Fault in electrical circuit
16587 P0203 Cyl.3, Injector Circuit Fault in electrical circuit
16588 P0204 Cyl.4, Injector Circuit Fault in electrical circuit
17833 P1425 Tank Vent.Valve Short to Ground
18043 P1635 Data Bus Powertrain missing message f.air condition control

These are the error codes i get from my scan ive spent over 600+ in trying to fix my starting problem but as soon as the says its fix, it start all over again a month later. Any ideas?
another member mention i should get the ignition coil checked........
 
It looks like a fuel pump error, but it should be problem only with a electrical connection (on the other hand why all 3 cylinders at the same time :confused:). In fact, why on earth it submited the error on... 4rd cylinder :D funny
 
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mine just started missfiring again today and i have similar codes.

p0304 cyl 4 sporadic missfire
p0271 cyl 4 sporadic injector
p0265 cyl 2 sporadic injector
p0268 cyl 3 sporadic injector

three new coils fitted, i'm wondering if the ecu is faulty?
mine starts well but stutters over 4k rpm:(

the fault code database says 3 of my problems are, Injector Circuit High Input/Short to B+
what on earth does that mean?
 
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Well... interesting. You should check what flow meter shows. It looks like a coil error. If you have sufficient skills, you can switch coil between them self an check effect. But maybe it is problem with supply line for pump-injector (quite common problem). You can move a plug on pump-injector or check resistance on whole cable. Third idea: it could be problem with a spark plug. Also switch between them self. In VW Passat (similar engine construction) there was few problems with coil. It was damaged, but switching each other didn't solve/show a problem. It helped only putting it to a fit car.

Last idea: check pressure wires/tubes.

I place a bet on coil :)

(apologize for my language :D)
 
thanks for that, another strange thing with my car is that it won't run on 4 new coils, just 3 new, one old/good coil ??:confused: i had to remove one of my 4 new coils to make it run smoothly.
i just fitted 4 new plugs but got no improvement.
 
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