Intermittent MIL

[Rick Rickman]

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Hi all. I get an intermittent MIL light when cruising on the highway and
accelerate slightly . I have not had this happen in city driving only highway
driving and only after cruising at steady speed for a while. If I put the
clutch in and let the engine go back to idle the MIL goes out performance
returns to normal. The fault codes are 2342,2341,2332,2331 some times only
2331, 2341 are set. The o2 sensors were replaced no change not likely that
both would fail at same time. I replaced the seal between the air box and
throttle body. Evap purge valve appears to be ok. I don't know if it is a lean
or rich condition that causes the problem. I have not checked the fuel
pressure yet. Any thoughts ideas ?????

Many thanks,

Rick

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