engine management codes

[richard165]

hi there,

occasionally my engine management light comes on with a p0204 injector 4 code (resistance measures 13.1 but sometimes a normal 13.7)

there is also a mass air intermittent circuit fault which happens at the same time.

could this be because of the injector primarily? I was just wondering whether to buy the injector or the map sensor.

thank you very much

 

[IDI AMIN]

You could swap the injector position with one of the others, this will let you know if injector is faulty or maybe a wiring fault.

A map sensor costs between 10 and 15 pounds, so it won't bankrupt you getting a new one.

 

[richard165]

thanks for the advice, ill try that