Code PO202

[scuba1x]

Check engine light on and pulled coded PO202, Injector circuit #2.
What is the best way to debug/fix?

Thanks!

 

[99gst214]

Verify if its the wiring, or the injector itself. Swap injectors and see if it throws a code for the cylinder to which you swapped the #2 injector too. I.e. Take the #3 injector and put it in the #2 spot, and #2 in the #3 spot. If it throws a code for the #3 after that, I would get a new injector.

If you have a noid light set, it makes life easy for testing injector circuits. Also double check fuel pressure at idle.

 

[ricktb]

quickest easiest probably replace all four injectors they probably getting old, or the harness has a short and needs repair

 

[scuba1x]

Thanks...I'll check the injector resistance (I have a multi-meter).

what is the resistance specification for the stock injectors?

I guess I can check the voltage at the connector to validate that it's not a supply voltage issue.

I really don't want to spend money on a replacement stock injector, because I have everything ready for a full build (evo III turbo, evo II manifold, AFPR, 1200cc injectors, PR FMIC, DMS Link 3, and of course the timing belt kit), but just haven't had time to start the build yet

 

[theoutlaw82]

Here ya go. This should help.

OBD-II Trouble Code: P0202 Cylinder 2 Injector Circuit Malfunction