sharpshooter

iTrader: (9)

New to your site.I have a ? that maybe you can help me with.I'm running a dynotune dry kit on my 1999 5.3 Silverado and was looking to install an A\F ratio gauge so I can try my 100 shot.I am wondering where to hook up the O2 sensor wire.I talked to Dynotune and they said it would probably be a wire up at the ECM.Just wondering which wire?

Beer99C5

iTrader: (21)

This for a narrowband gauge?

The PCM has two large connectors, one is colored Blue, the other is Red. It is plainly visible once you have the connector off. The numbers are also clearly visible for the pinouts with the grey Plastic cover off.

Here is the red Connector


Here is a link to a 99 PCM, not sure if the Truck PCM is the same or not
http://www.ls2.com/boggs/torques/99pinpcm.htm

You may want to consider posting this in the Truck/Tuning section.

Beer

n2ocamaro

You should really consider using a wideband 02 sensor. The narrowbands are only accurate at 14.7:1 (which you never want to see on nitrous).

BTLFEDSS

iTrader: (12)

If it is a narrow band Casper Electronics sells a plug that connects between the 02 sensor and the harness wires with a pig tail to hook in to.Which means you don't have splice into 02 factory wireing.Which in my experience is very,very sensitive.Buy the plug for $20 and save your self the headache
BTLFEDSS

sharpshooter

iTrader: (9)

Which of my 4 O2 sensors would I hook to?

BTLFEDSS

iTrader: (12)

Any i beleive but i would mount it on the drivers side front
BTLFEDSS