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engine diagnostic question 900 1991

Hi,

I noticed that in the upper right side of the engine compartment near the master cylinder there is a small plastic box with several holes, a plug and an LED. I was told that this is used for diagnosing engine problems. Can anyone tell me if this is true and if so where I can find the specifics on how it works?

Thanks,

john






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New engine diagnostic question [900][1991]
posted by  someone claiming to be John Norris  on Sat Nov 18 02:06 CST 2000 >


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