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trevshar

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Posts: 4
Reply with quote  #1 
90 etec dropped a cylinder last trip out ... limped back into port ... inspected plugs number 1 was sooted up .. replaced plug it ran fine ...replaced all plugs thermostat, filters , took it for a test ... straight on plane 4200 rpm good for 1 mile then dropped a cylinder again !... limped back into port ... ??? Any ideas
Huey

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Posts: 13,858
Reply with quote  #2 
Do the basis and see what cylinder is not doing it's job. DI plugs look different to carby plugs.
trevshar

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Posts: 4
Reply with quote  #3 
Hi Huey

Pulled out plugs ... looks as though number 2 cylinder plug very wet ...
1 and 3 clean and dry ....  could this be an indexing problem .... ? How accurate doe this need to be ? thanks in advance

Huey

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Reply with quote  #4 
Wet plugs tend to be due to no spark so check that, that plus fuel pressure check and compression checks are the basics we talk about on here. It will help too if you Ev diag.
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