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Re: How to do a tuneup on a 960??? 900 1992

posted by  someone claiming to be Lance Schumacher on  Wed Aug 15 10:13 CST 2001 [RELATED]

Chances are your coils are just fine. How rough-running are we talking about? Is the check engine light on? Just off the top of my head...here's some things to check:

-first, retrieve the trouble codes from the ECU per the 700/900FAQ and report back what you find

-O2 Sensor (instructions for checking it are in the 700/900 FAQ)

-sticking valves (run a bottle of Techron through and drive 10 minutes @ 5Krpm)

-bad AMM (should set a trouble code)

-leaking intake manifold gasket

There are a lot more possibilities, but this is a good start anyway,

Lance





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