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Update on rough idling '90 240 200

posted by  jbr on  Thu Oct 14 05:43 CST 2004
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last visit: Thu Oct 11 06:18 CST 2012
[RELATED]

Update to rough idle...
Finally got around to taking out the idle motor and giving it a good cleaning and a quick spray with WD40. It now starts up fine (cold) goes into a slightly raised idle for a few secs and then settles down to what would be a normal idle. Except that there is shaking and I hear slight mis-fires going on, like pop....pop..pop....pop..pop..pop...... and so on. If I raise the engine speed it seems to clear up, but there is some missing going on still. It almost seems like I have a faulty plug or maybe the plug gap is too wide? These Nippon-Densu plugs were installed about 2 weeks ago. Where should I go from here???? Thanks!!!!!!!!!
Items replaced so far....
plugs
plug wires
rotor
one fuel injector (with a good used one)
all injector o-rings and caps





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