Got a free MS2, C16 is roasted...
2 Attachment(s)
Hey all,
Long story short a mechanic friend of mine asked me if there was anything I wanted off of an audi that a customer abandoned at his shop before he pushes it out in the street to get towed. I quickly found an MS2 and an LC1 that I snagged. Here is the problem with the megasquirt. Never seen this one before. Perhaps someone installed this capacitor backwards? Or maybe a crazy voltage spike in the car? https://www.miataturbo.net/attachmen...ine=1319651009 https://www.miataturbo.net/attachmen...ine=1319651009 Going to swap it out and see if it will power up. Anything else I should swap out while i'm doing that? There doesn't seem to be any visible damage to any of the diodes or anything. |
I'd replace the three caps there. C17 and L1.
probably a voltage spike, or it was install backwards. |
Originally Posted by Braineack
(Post 788295)
I'd replace the three caps there. C17 and L1.
probably a voltage spike, or it was install backwards. :brain: |
:idea: Would that abandoned Audi run if it had a functioning ECU?
|
Originally Posted by ScottFW
(Post 788345)
:idea: Would that abandoned Audi run if it had a functioning ECU?
|
I repaired a similar MS just last week. The alternator field wire was shorted, so it had a +25V voltage spike.
C16 had exploded and 2 diodes were burned short (a 1N4001 and a zener). Can't exactly remember wich one but it was 2 out of D10 to D13. As they were shorted, it was easy to test them. Also burned out 2 traces in that area. |
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