po23 and 71 code 94 sts
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Joined: Sep 2007
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po23 and 71 code 94 sts
I have a 94 sts with 150000 miles on it. The car looks great and up untill recently has been running well. Every so often I have a bad miss and my idle jumps up and down. I've had these two codes come up My local mechanic has had no luck. Can anyone help me?
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Joined: Dec 2006
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From: Toronto, CANADA
RE: po23 and 71 code 94 sts
P023 (E023) ..................... Electronic Spark Timing (EST) Signal problem [EGR]
P071 (E071) ................................................ Intermittent MAP Signal
P071 (E071) ................................................ Intermittent MAP Signal
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