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04-07-2012, 03:45 PM
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#1 | |
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10-year Owner
Join Date: Aug 2005
Location: Dallas, Texas
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Scanning with WinALDL, OBDI, 92 S10
I finally picked up an ALDL to USB cable and now have the capability to scan my ECM. Unfortunately, I don't know what all the info means. Does anyone have some experience reading ECM data and utilizing it usefully? I can even share a Excel spreadsheet with my trucks read-outs. What are some things to look for? What are normal readings for all values? What can I gather specifically about my rough idle with this information?
I have a 1992 S10 Blazer, 4.3L, TBI, 4x4. Here's a taste of the info: BLM- 144 at 525 RPM idle, MAP- ~35 BLM- 124 at 2000 RPM, MAP- ~62 The oxygen sensor ranges from 0 to .906. What's a good read out of an O2 sensor? The coolant temp never got above 187.3. Lots of info in this file. Wags |
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04-08-2012, 10:47 AM
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#2 | ||
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AF - Advisor
 
Join Date: Sep 2005
Location: New London, Missouri
Posts: 16,690
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Re: Scanning with WinALDL, OBDI, 92 S10
Quote:
Front 02 sensors should swing from .2 to .8 volts with the average at .5volts. Your sensor readings will depend a lot on engine load.
__________________
Remember proper testing gives us the answer to many problems. MT |
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| aldl , data , idle , obd1 , winaldl |
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