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Re: Continuing saga of the high idle/surge issue
Posted by fsik (more from fsik) on Thu, 29 Mar 2001 22:27:46
In Reply to: Continuing saga of the high idle/surge issue, MJM
[Profile/Gallery]
, Thu, 29 Mar 2001 10:00:04
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TG beat me to it ... wiring. I leafed thru AllData and I found a great diagnostic section entitled someting like "Trionic Faults Which Do Not Produce Trouble Codes." The bottom line: the last resort before exchanging ECUs is an exhaustive check of the wiring. Are all the fuses happy? Perhaps disconnecting the battery for a few minutes (while you dig up the radio code) will give the ECU something new to think about.
I found a random bit of information that mentions the brake booster/servo in regards to idle, but you passed the crimp test, so that's out.
FWIW, they note that in 1993, 80% of all ECUs returned to Saab as 'defective' weren't actually defective. It was kind of an admonition to the dealers to do a little due diligence. I believe the TECH2 can test back through the wiring, but I have a feeling most dealer techs will only test components -- less work that way...
Posts in this Thread:
- Continuing saga of the high idle/surge issue, MJM
, Thu, 29 Mar 2001 10:00:04- Re: Continuing saga of the high idle/surge issue, Dean, Fri, 30 Mar 2001 12:38:32
- thanks TG & fsik, MJM
, Fri, 30 Mar 2001 08:59:56 - Re: Continuing saga of the high idle/surge issue, fsik, Thu, 29 Mar 2001 22:27:46 <-- Viewing This Message
- Re: Continuing saga of the high idle/surge issue, TG, Thu, 29 Mar 2001 17:18:05
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