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Old 12-01-2014, 06:29 PM
97 SL320 97 SL320 is offline
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Join Date: Jan 2012
Posts: 7,534
Quote:
Originally Posted by RickH View Post
I previously had a misfire on cyl #3 that is now gone. Compression os ok. When you refer to cycling key do you mean start and stop restart? or just turn key to far position a few times? I will check the coil and plug both new but that means nothing. I appreciate your response. Any thing else you can think of is appreciated! Thanks.
Turning off the engine, waiting a say 10 seconds for everything to power down then restart. ( You might get away with a shorter cycle but start there )

Per your last post, a large gap can cause the cyl to miss fire. Did you change all the coils during the first round of repairs or just a few? What about the coil to plug boot?

I came across the injector shut down on miss while diagnosing a bad MAF. If the MAF went completely off line, the computer would sub a value and keep the engine running. Sometimes the MAP would go off scale and not let computer go into limp mode, this made for a really odd random miss.
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