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Old 01-05-2017, 05:32 PM   #207 (permalink)
aerohead
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capacitor

Quote:
Originally Posted by Ardent View Post
Assuming you've got the typical Denso ECU, the top and bottom case covers are attached with screws and easily removable. There's an electrolytic capacitor that is part of the ignition circuit that is prone to age related leakage and failure. While stuff can fail and appear normal, I think it would be worth the time to take a quick visual to see how the board appears since a capacitor that looks bad is bad.

If you find one that's bad, it's pretty simple to solder in a replacement.
Excellent point!
My brother and I were discussing this last night.The capacitor is a crude form of battery and will actually fail chemically over time.I was given an oscilloscope in which the electrolytic capacitors had 'eaten' the insides of the device,rendering it 'toast.'
I've already pulled the kick panel to expose the ECM.I should ground myself and pull it and inspect it as you recommend.This is the sort of thing we were hoping to research,understand,rather than just be a parts-changer.
Thanks again!
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