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Old 07-25-2004, 02:29 PM   #1 (permalink)
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Default Stock O2 and programming stock PCM

Just curious if the stock O2 is wideband or narrowband? These days most new cars are coming with wideband, just curious if ours is.

Is it possible to program our PCM with a laptop like I do my LT1 or LS1's?
Does anybody have software/hardware yet to download and upload and edit (besides the dealer) files to the PCM?

Just curious.

Mike
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Old 07-25-2004, 05:13 PM   #2 (permalink)
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it is a 5v narrow band...

and no, the PCM is locked...

There is a pretty heated debate right now in this section....

http://srtforums.com/forums/showthread.php?t=69850
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Old 07-25-2004, 06:29 PM   #3 (permalink)
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Please stop posting misinformation mr Fury.

4drhtrd,
It is a narrowband. It rides on a preset DC level. Around 3V if I recall correctly(the one in the 02 housing), so with a MM you will see ~3-4V swings.

For the sake of argument you can confirm this with a Volt meter. The wire/signal could be found in the service manual.
Proper OBDII logging SW will display the output on a 0-1V Scale.
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Last edited by cali : 07-25-2004 at 06:32 PM.
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