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Re: Strange no start issue on LH2.2 turbo -1988 Posted by Justin VanAbrahams [Email]  (#32) [Profile/Gallery]
(more from Justin VanAbrahams) on Wed, 25 Apr 2018 20:20:29
In Reply to: Strange no start issue on LH2.2 turbo -1988, Notnoel  [Profile/Gallery]
, Wed, 25 Apr 2018 20:05:55
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The body of the AMM could definitely be grounded - I've never checked, but it wouldn't be unexpected. Very likely the signal ground contacts the body.
The no start issue sounds to me like a problem with the Hall sensor or the lame wire to it... if you're doing a clutch that is getting toyed with and it would definitely cause a no spark issue. In 2010 that wire on my SPG was so brittle it nearly cracked in half when I did the clutch. I replaced the entire cable with one removed from a '90 SPG and when I did the T5 conversion last year it too had become pretty brittle. TBH, the distributor & related gear is The Reason I did a T5 conversion... that system is borderline unserviceable these days!
You really do need to complete those Hall sensor tests - because while power and continuity are important, they don't rule out shorts or high resistance/weak signal. You don't really need a helper for that - just mark the distributor's position, remove the clamp holding it to the head, and slightly disengage it from the head. Then you can turn the rotor by hand to check it's output... Or, leave the key on and plug in your spark tester and see if spinning it by hand gives you spark. If it doesn't, swap out the ICU. If it still doesn't, highly likely the Hall sensor or its wire is damaged. You could probably DIY a replacement wire using a telephone cord for testing purposes. :)
posted by 69.62.25...
, Wed, 25 Apr 2018 20:05:55, Thu, 26 Apr 2018 07:48:30, Thu, 26 Apr 2018 08:00:04, Wed, 2 May 2018 06:23:33, Thu, 3 May 2018 01:30:05, Wed, 25 Apr 2018 20:20:29 <-- Viewing This Message, Thu, 26 Apr 2018 08:39:51, Fri, 27 Apr 2018 06:39:27
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