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Old 10-12-2015, 03:49 AM
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Lexicon740iL Lexicon740iL is offline
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Thanks for the replies guys!

I did some more scanning with torque this evening and looked for the stuff you mentioned. I'm using the free version, not pro but I was able to pop around in some menus and find a few things.

The most notable of which is Fuel/Air Status widget

It has 2 categories

Fuel system status And Secondary air status

With no CEL light illuminated and it running fine.

The Fuel system status category reads:
Closed loop system running or system reading form o2 sensors

and the Secondary air status just reads:
System not supported

Once it starts to idle funny throw a CEL light solid or flashing the

Fuel System Status category reads:
Open Loop due to system failure

So that got me thinking if when its running fine it says its receiving data from the o2 sensors. in that category and when it's misfiring that category says open loop system failure.

Then I toggled display on for O2 sensor voltage for bank 1 and 2, not sure if they were pre or post or what it was letting me read but I this is what I saw.

Running fine with a cleared ECU after fresh start it drives fine like I mentioned in my earlier post. The values on both banks raise and fail equally as I speed up and slow down. When I stop and it starts to idle I notice that bank 2 shoots all over the place and then the CEL illuminates and I get 0.0V from both banks.

Does this point to a possible o2 sensor issue?

Here are some screen shots



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Last edited by Lexicon740iL; 10-12-2015 at 04:26 AM.
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