I'm working on a 1989 240 Sedan, and I am having a heck of a time keeping it running. I have replaced the main relay and the fuse under the hood. From the tests that I have done I am having troubles getting a signal from the ECU to turn the fuel pumps on, when it does start it will go a couple days without any issues and runs great. But then without notice it just won't start... I put new spark plugs in and then it ran great for a couple days but then acted up again... Any Ideas... I'm hoping it's not the ECU but who knows...
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