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Changing ICU & Ignition coil 200

posted by  lucid on  Fri Oct 22 08:16 CST 2004
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last visit: Fri Oct 24 12:31 CST 2014
[RELATED]

Is there fuel on the no-start? ie. are the plugs getting wet?

If not try forcing the pumps to run, with a jumper from fuse 6 (left side) to fuse 4 (left side).

If it fires, the weak spark is secondary (no pun intended) and the jumper bypassed a fuel problem.

In the 14 years or so that I've known 240s, I havent seen (or heard of) a bad V/C ICU or Coil. Not to say they can't happen, but I'd explore other—more common—things first.

Then, looking back at your earlier post, I see 2 unaddressed comments:

1 - Would a weak spark cause the system to not deliver fuel? I don't think so. If you can see even a "weak" spark, I think the ICU will give the "OK signal" to the LH ECU.

2 - My next step will be to try starting with pumps jumpered. I was waiting to hear the results of that. Which is why I suggested it here.
--
Bruce Young
'93 940-NA (current) — 240s (one V8) — 140s — 122s — since '63.






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New Changing ICU & Ignition coil [200]
posted by  macs70GLT  on Fri Oct 22 07:08 CST 2004 >


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