P0203 Code
I know the code is a electrical interruption to the fuel injector at the third Bank. I went through all the diagnostic procedures, I can't find any shorts in any of the wiring all the way back to the PCM. I checked all the fuses everything looks good and my battery is brand-new. All the ground wires are clean and secure also.
So the question I would like to ask is, could it be the fuel injector itself. I did have all mine rebuilt about a year ago. The guy who did the service on the injectors put new filters new everything on them. Also checked the voltage and the flow rate. I was curious if anybody else is had this problem and what they did to fix it. I've cleared the code on the truck and it seems to be running fine, then a couple days later it does it again and when it does it, it stumbles like the injectors not working. Any help would be greatly appreciated .
So the question I would like to ask is, could it be the fuel injector itself. I did have all mine rebuilt about a year ago. The guy who did the service on the injectors put new filters new everything on them. Also checked the voltage and the flow rate. I was curious if anybody else is had this problem and what they did to fix it. I've cleared the code on the truck and it seems to be running fine, then a couple days later it does it again and when it does it, it stumbles like the injectors not working. Any help would be greatly appreciated .
Got a test light? If ya do, hook the test light across the terminals on the injector connector. Start the engine. The light should flash. If it doesn't, and apparently you have already checked everything else.... PCM problem.







