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po23 and 71 code 94 sts

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handyboyski
9/20/2007 3:55:39 AM
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?
Katzmans Caddy
9/20/2007 4:36:34 AM
P023 (E023) .....................  Electronic Spark Timing (EST) Signal problem [EGR]
 
P071 (E071) ................................................  Intermittent MAP Signal
handyboyski
9/22/2007 3:21:35 AM
Is this something I can fix myself? Any tips would be appreciated
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