Need 02 help

shelpman17 · Oct 17, 2017

I have a 2006 1500 5.7. I have the cats cut off and the the sensors all worked in and put in the headers where they normally should be and the back ones are in the non fouler bungs to try and pass emissions. I keep getting closed fuel loop code on the scanner. Does anyone know how to make it "pass" emissions??

shelpman17 · Oct 17, 2017

shelpman17 said:
I have a 2006 1500 5.7. I have the cats cut off and the the sensors all worked in and put in the headers where they normally should be and the back ones are in the non fouler bungs to try and pass emissions. I keep getting closed fuel loop code on the scanner. Does anyone know how to make it "pass" emissions??

Update the bank 2 sensor 2 is reading 4.7 volts while bank 1 sensor 2 is about half at 2.7

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chrisp2493 · Oct 17, 2017

What is the exact code it’s throwing?

chrisp2493 · Oct 17, 2017

Ive heard the non foulers are hit and miss about working on certain trucks. I had them for awhile with no problems, other people didn’t have luck. You can try packing in some steel wool too and see if that makes the code go away

shelpman17 · Oct 17, 2017

chrisp2493 said:
Ive heard the non foulers are hit and miss about working on certain trucks. I had them for awhile with no problems, other people didn’t have luck. You can try packing in some steel wool too and see if that makes the code go away

The code it's throwing is P1129

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chrisp2493 · Oct 17, 2017

Did the sensors get put in the right positions? Like the upstream and downstream sensors didn’t get accidentally switched on the install?

Need 02 help

shelpman17

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