Subject	Additional Data
Posted by	Cjw3 on February 08, 2023 at 9:43 AM
	This message has been viewed 192 times.
In Reply To	More data inside -----> posted by fantomZ(OH) on February 07, 2023 at 06:26 PM
Message	AFR VS Voltage Chart Narrow Band Sensor .07=16:1 .09=15:1 .45=14.7:1 ( Stoch) .81=14:1 .9=12:1 When your Idle gets up and warm, your actual Mixture as reported by the O2 Sensors is ~ 14.67 AFR for both sides.. That is close enough to be considered its fine.. The O2 Sensor Voltage is only off by 0.01 Volt between them.. I'd say they are the same.. In this senario I see your Ignition Timing ( Last Vid ) is idling at 15 Deg as it should.. So the 'Idle Circuit' is operating Properly.. The 'Idle Hunt' will likely be a 'Sticking' Idle air control valve.. Back in the Archives ~ 2012 or so I think, there is a DEEP DIVE into a z with a Hunting Idle Problem.. It involved O'Scope Tracing and a LOT of work.. Ended up the IAC was 'Sticking' and was causing the Idle Hunt.. Cj
Follow Ups	Idle Troubleshooting - 90TT (Part Deux) - fantomZ(OH) 16:32:49 01/28/23 Thanks for the Vid.. This tells a lot - Cjw3 19:26:44 01/28/23 interesting, this might explain why it runs & drives well... - fantomZ(OH) 12:23:15 01/29/23 Most Idle in 'Closed Loop' The Book is somewhat missleading - Cjw3 13:27:42 01/29/23 Looks like the "CLSD THL/POS" is toggling off/on correctly - fantomZ(OH) 20:45:10 01/30/23 Was this car an Auto? - Cjw3 06:03:50 01/31/23 Factory 5sp car, off the shelf ROM for my setup (n/m) - fantomZ(OH) 07:51:15 01/31/23 Then please check Conzult for the Netural Switch Input (n/m) - Cjw3 07:01:41 02/01/23 I just sat with my NA in the Driveway.. - Cjw3 12:02:33 02/04/23 I was able to verify the neutral switch operating properly. (n/m) - fantomZ(OH) 17:47:19 02/07/23 More data inside -----> - fantomZ(OH) 18:26:46 02/07/23 Additional Data - Cjw3 09:43:23 02/08/23 I found the Post.. Pics are gone - Cjw3 12:42:26 02/08/23
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