wideband O2 a/f gauge install question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

1972BlueC20 · 03-18-2015, 08:49 PM

I'm still chasing a bad off idle hesitation. Can't seem to get it fixed.

I think I'm going to install an a/f meter with a wideband O2 sensor.

My question is how would I route the wiring from the O2 sensor into the cab and to the gauge?

Acorn · 03-18-2015, 09:48 PM

Don't know much about them but I'm sure they will have instructions.
Don't know if this will help but I saw this site yesterday.
I'm sure others will chime in. Or try the engine section.

http://www.zeitronix.com/order/order.htm

**Tom Vogel** · 03-19-2015, 10:00 AM

Do you have a Quadrajet? Sounds like the accelerator pump.

1972BlueC20 · 03-19-2015, 10:42 AM

No I'm currently running a Holley 670 with vacuum secondaries and electric choke. I also have a # 1406 Edelbrock that's doing similar things.

I've checked for vacuum leaks on both, checked timing on both....tried different timing settings and with and without vac advance....Im pretty sure both carb are going lean upon acceleration.

Since I got a new motor, I can't get any carb to run right on this engine.

It's GM part # 19210008 (350, 330 HP with Vortec Heads)

You can read about my ongoing saga here :

http://67-72chevytrucks.com/vboard/s...d.php?t=661895

03-18-2015, 08:49 PM	#1
1972BlueC20 Registered User Join Date: Jun 2014 Location: Houston, Texas Posts: 722	wideband O2 a/f gauge install question I'm still chasing a bad off idle hesitation. Can't seem to get it fixed. I think I'm going to install an a/f meter with a wideband O2 sensor. My question is how would I route the wiring from the O2 sensor into the cab and to the gauge? __________________ 1972 Chevrolet C20 Cheyenne Custom Camper LWB - 350 / 330 HP GM Crate - TH350 / Mild Shift Kit - Dark Blue / Medium Blue - Paint Code 559

03-18-2015, 09:48 PM	#2
Acorn Registered User Join Date: Jul 2013 Location: Winnsboro Texas Posts: 367	Re: wideband O2 a/f gauge install question Don't know much about them but I'm sure they will have instructions. Don't know if this will help but I saw this site yesterday. I'm sure others will chime in. Or try the engine section. http://www.zeitronix.com/order/order.htm __________________ The bitterness of poor quality lingers long after the sweetness of a low price is forgotten.

03-19-2015, 10:00 AM	#3
Tom Vogel 2WD Jimmy Join Date: Mar 2005 Location: Davis County, Utah Posts: 2,563	Re: wideband O2 a/f gauge install question Do you have a Quadrajet? Sounds like the accelerator pump.

03-19-2015, 10:42 AM	#4
1972BlueC20 Registered User Join Date: Jun 2014 Location: Houston, Texas Posts: 722	Re: wideband O2 a/f gauge install question No I'm currently running a Holley 670 with vacuum secondaries and electric choke. I also have a # 1406 Edelbrock that's doing similar things. I've checked for vacuum leaks on both, checked timing on both....tried different timing settings and with and without vac advance....Im pretty sure both carb are going lean upon acceleration. Since I got a new motor, I can't get any carb to run right on this engine. It's GM part # 19210008 (350, 330 HP with Vortec Heads) You can read about my ongoing saga here : http://67-72chevytrucks.com/vboard/s...d.php?t=661895 __________________ 1972 Chevrolet C20 Cheyenne Custom Camper LWB - 350 / 330 HP GM Crate - TH350 / Mild Shift Kit - Dark Blue / Medium Blue - Paint Code 559



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