Weird night with the engine code

[Stereodesigne]

So as long as I've owned my 96 Chevy Tahoe (5.7) I've never thrown a engine code....keep tune ups blah always kept up....only mods I have are dual exhaust
Btw I'm mike I've been following the forum but finally registered haha

So i left for two days start the tahoe and I have a engine code....whatttt anyway turns out is a bad o2 engine code.
But the part I have never seen anything like is the truck runs 10xs better now it threw that code
Smoother idle, and better throttle response
:banghead:

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[slims]

Welcome! This sounds interesting.

 

[Bigredmariner]

Welcome, what is the code number? Does your truck have 2 or 4, O2 sensors?

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[mr_bots]

Probably time for some new O2 sensors.

 

[CJ Hungus]

Welcome to the site!

 

[The_Chupacabra]

If i remember correctly, my 96 had 4 sensors and they weren't cheap...

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[Texas Jim]

What code is it ??

 

[ScottyBoy]

What's da code yo?

 

[Wyley87]

There are two front and two rear O2 sensors on that truck. $50 each

Ask me how I know..

We need to know the code you have.


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[Stereodesigne]

On mine there are only upstreams

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