ok i kno i posted this in the wrong section. i did it on purpose as this one gets more traffic. I need to know which wire is the signal wire in the oxygen sensor for hooking up an air/fuel gauge? also, which wire in the dash do i jump off of so my aftermarket gauges light up automatically when my headlights come on? thanks!!!
2005 GMC RST *sold
2006 Silverado SS with nawz
if im reading this right, Hayne's says that there is a white wire coming from the ambient light sensor and BCM that runs to the headlamp relay. or you could buy your own relay and wire it up to your head lights. that might be easierOriginally Posted by turbo4.8
R.I.P Blue '02
'08 - 5.3
Vette Servo, Flowmaster 40
For the signal its the high side 02 blue connecter on pcm pin 66 for left or 69 for right
01 ecsb 5.3 4x4 z71
Avalanche 17s and a pant load of miles
61 Corvette
350, 4 speed, 4.56's
32 Ford 4 door sedan
keeping it "stockish"
you don't need a relay for the lights, you can hook the light up th the red wire on the back of the cluster or if you have an aftermarket radio you can take power form the illumination wire now your gauge will dim with the rest of the dash
01 ecsb 5.3 4x4 z71
Avalanche 17s and a pant load of miles
61 Corvette
350, 4 speed, 4.56's
32 Ford 4 door sedan
keeping it "stockish"
ok got it all wired up this morning and have it all working. only thing is, my air/fuel gauge is really jumpy back and forth back and forth. even at idle. Do you think my factory tune is that off? or do i not have a really good connection where i tapped into the signal wire? went to pin #69 blue. engine light is on also. im gonna scan it this afternoon and see if that has anything to do with it. any ideas?
2005 GMC RST *sold
2006 Silverado SS with nawz
The AFR is always like that. It refreshes that fast.
1969 Chevy RCLB C10 350/TH400 SOLD
2007 Chevy RCSB 4.8 4x4 LS SOLD
2008 Chevy RCSB 5.3 4x4 LT SOLD
2010 Chevy CCSB 6.2 4x4 LT SOLD
2005 GMC CCLB DRW 6.6 Duramax 4x4 191,000 and counting
2013 FORD CCSB F350 6.7 Powerstroke 4x4
engine light had nothing to do with it. cleared it and it all went away. afr is still really jumpy. idk seems odd to me. but i guess thats how its supposed to be?
2005 GMC RST *sold
2006 Silverado SS with nawz
well it sounds like you hooked up a narrow band a/f gauge, which is a waste of money. If you want to know your a/f ratio you need to get a wideband setup.
its normal for it to bounce around, thats how you know its working.
01 ecsb 5.3 4x4 z71
Avalanche 17s and a pant load of miles
61 Corvette
350, 4 speed, 4.56's
32 Ford 4 door sedan
keeping it "stockish"
had it lying around for a while so i figured id throw it in there. plan is to get a wideband when i get some casssshflow. just playing with parts i already have. just wanted to make sure its working right.
2005 GMC RST *sold
2006 Silverado SS with nawz
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