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hesitation at 2000 - 2500 rpms 900 1993

posted by  ronald on  Wed Oct 28 01:22 CST 2009
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last visit: Wed Oct 10 11:04 CST 2012
[RELATED]

Our new 93 940 sedan with b230f Regina and 170k idles very smoothly but is not smooth at 2000-2500 rpms. I replaced a pitted distributor rotor and cap, changed spark plugs and swapped in some newer Bougicord wires which seemed to help just a little. The car passed smog test at idle but not at 2000 rpms.

Is the O2 sensor active at idle? How about the other Regina components like intake temperature sensor?

Thanks,

Ron

93 245
93 940






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