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- - po23 and 71 code 94 sts (https://www.cadillacforum.com/forum/cadillac-sts-17/po23-71-code-94-sts-3769/)

handyboyski

09-20-2007 05:55 AM

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?

Katzmans Caddy

09-20-2007 06:36 AM

RE: po23 and 71 code 94 sts

P023 (E023) ..................... Electronic Spark Timing (EST) Signal problem [EGR]

P071 (E071) ................................................ Intermittent MAP Signal

handyboyski

09-22-2007 05:21 AM

RE: po23 and 71 code 94 sts

Is this something I can fix myself? Any tips would be appreciated

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