Quote:
Originally Posted by 169mph
My path forward depends on what's causing the issue I have now. I'm trying to collect as much info as I can to help make that decision.
Yes, I understand that ford harness from 99-04 mustang would plug into the MS3. I preface this by saying I've never worked on any car electrical systems and prefer not to rerun a new wiring harness. Is it possible to cut the existing connectors and replace them with the new or used harness connectors? Thanks for the help.
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You are struggling with an antiquated system that even if it were operating correctly ought to be replaced for no other reason than serviceability. The idea of discovering what is wrong with the EFI and then fixing and/or replacing the system might satisfy curiosity but little else.
Out with the old and antiquated and in with the new. Time spent on analyzing the old malfunctioning system that needs replacement serves no good purpose. Get on with the replacement and start driving the car again.
In your replacement search determine what features are important to you. Review the purchase options available to you that support the features you are looking for. Determine what the budget you have available for the project is. Select the system that fits into your budget with the most features you want.
If you can not select features because you are not informed then either spend the time to get informed (learn) or select a name brand system that fits into your budget. There are no commercially available name brand systems available today that can even come close to how unsuitable the system you now have is.
In the end you can easily cover the feature set you need by selecting any of the name brand systems. That means your selection will come down to price. The provider that has the lowest purchase price ECU will be your best choice, selection limitations notwithstanding.
BTW the alternative is to continue to wring your hands over lack of operation, spend lots of money and in the end discover you could have achieved the same thing for many, possibly thousands, of dollars less.
As daunting as this fix sounds it is pretty simple and straight forward. Time to just do it.