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Well, happy holidays and safe season for you all. I need to verify my findings with you guys on the this PCM issue. Too many codes (misfired) all related to the injectors; with a DMM I checked the wire of each injector: 4 of them with between 16.1 to 16.3 ohms and 2 with between 1.1 to 1.5 ohms. The volts reading is 13.6. Five of the injector had pulse, but one of them does not have a pulse, the green stayed on,(ground output) while the others ones pulsated. All these tests are done directly from the PCM connector (B) which is the white connector. The crankshaft position sensor is good.
Do I have a bad driver on injector # 2?.
Thank you and GOD BLESS
That said, my general practice has always been, if one is bad, replace it, if two are bad, replace them ALL. They all live in the exact same environment.... so, if you have more than one failing, you can bet the others likely aren't far behind.
I am confuse, are you talking about the injectors, they are new, the ohms measurements are from the wires, coming out from the PCM, as I expiained on the original post. Is the PCM bad due to not pulse on injector 1?
thank you
Yes: measuring resistant: just the wire and then with the injectors in the circuit. Five came with 16.8 and 1 with 17.1. I did repair 3 wires and tested for continuity which turned out good.
Thank you
The wires I would expect to have little or no resistance, (at least, not on that short of a run.) with the injectors inline as well, you should see consistent numbers across all of them. (within an ohm or two, I should think) If that's the case, then you are likely OK on that.
The PCM was bad, injector #2 driver. Did a search online found a YouTube video, which showed how to test the PCM for voltage drop and found a -11 on the ground side
Cavity C: B12pin which is the ground for the injector connector #2.