96 F250 PCM Failed Previous Capacitor Repair Inspection for Chad C.
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- Опубліковано 1 січ 2025
- Bench testing Chad's 96 Ford F250 PCM (LAD1), which is an EEC-IV speed density computer. While it works fine on the bench with basic testing, the complaint in the car is that Bank 2 injectors drop out under a load.
A physical inspection determined a previous capacitor replacement was likely faulty, and we're hoping that redoing the repair maybe able to save this computer. This is the pre-repair testing and inspection video.
I have a 1989 Bronco 5.0 and I was watching some of your older videos on verifying that the injectors are grounding out through the ECM. I believe my ECM is bad, I tried replacing the capacitors with no luck in improving my issues. Before I send it out I was wanting to try and bench test it myself. Do you think you will ever make a video on how you made your bench tester?
No, I probably will not make a video on that. There's not that much to the bench tester. Power, ground, 5v ref, fuel pump, check engine light, power indicator, and a switch for code pulling mode.
I don't really recommend replacing the capacitors DIY. If you don't have good magnification and lighting, and good soldering and desoldering tools, along with a good working knowledge of board repair, you can end up damaging the board pretty easily and making your life worse. If you're familiar with capacitor repair and have done that type of work before then ok. But it's not a home-owner type of job for most people to try. I've had to fix plenty of computers that other "Ebay rebuilders" worked on, and they basically ruined the PCM or made it much worse.