Resolved P0203 engine code

[Dsmj89]

Went today to get my CEL checked out and got this code, p0203, injector 3 circuit malfunction.
I have visually checked the connectors and wires for any damage but they have nothing, all injectors plugs and wiring look fine.
I have read that a bad resistor pack can cause this to happen, is this true ?
My idle is a little rough, 5 people have already asked me if i was cammed, no lie. Car also runs really rich.
Any help would be greatly appreciated.

 

[ilco187]

Google search found OBD-II Trouble Code: P0203 Cylinder 3 Injector Circuit Malfunction

 

[Dsmj89]

Thanks ilco, already read that though.
I am curious to know if anyone else had a similar problem or know of someone who did and helped fix it and what it was.

 

[96 420a-t]

If you follow the diagnostic chart you will find your problem. There is no two instances with this code that will be the same. What fixed another car wont neccesarily fix yours.

 

[Dsmj89]

Very true. I guess i will start using the process of elimination and report back.

 

[96 420a-t]

If you get stuck shoot me a pm. From what I can see check your wires with a dvom. Otherwise its gonna be an injector.

 

[Bishikid]

oh man I had that same problem! but I changed out the fuel injectors and fuel pump and fuel lines, and it runs better. it still idle fishy when its warming up, and its running rich. but atleast it doesnt get the retad seisures anymore!! haha

it would get these really bad idles, the wole car would shake, and had stock mounts thus my friends called it having seicures. when it did that I couldnt do anything, Id jst have to wait it out, if I tryed driveing it during its seicures it would just stall :-(

if u find a solution please report it back to the thread dude!

 

[Dsmj89]

Will do bishikid, and thanks 420a.
My friend (chicken_patty) who lives a couple blocks down has a set of stock injectors and i know those are good so i will slap them on tomorrow and see if it fixes the problem, if not i'll aim for the resistor pack.

 

[Dsmj89]

Problem was fixed a week ago. It was the ecu.

 

[turbo24]

quickest and eaciet (and cheapest) way to chheck next time swap injectors around and see if the code moves to a NEW CYLINDER IF IT DOESNT INJECTOR IF NOT WIRING OR ECU