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I just installed a wideband gauge in my 03 C5Z took it out for a quick little run @ wot the gauge was reading 11.7 at the start and worked its way down to 11.2 is that rich ?
its been tuned (previous owner) car has kooks headers & X pipe, Vararam ram air, BB exhaust & tuned
is that where these cars like to be?
EDIT:
I pulled 4 plugs today can you guys tell me what you think? my camera was dead so sorry for the crappy cellphone pics
plug drivers side front
drivers 2nd back
passenger front
passenger 2nd back
Last edited by Stroker87; Apr 12, 2015 at 01:10 PM.
the x pipe is catted but there hollow so right behind the cat's theres bungs for the factory rear o2's witch was tuned out on my car and pluged so i just installed it in one of them (drivers side) about 12 to 14 inches from the collector
might have a bung installed in the x section when i get a chance
DB gauge uses an analog output from the LC-1. First thing I would do is connect your laptop to the LC-1 and make that analog output is configured correctly and AFR matches on laptop (serial) vs gauge (analog)-- if you haven't already done that to confirm the gauge is displaying accurate info.
DB gauge uses an analog output from the LC-1. First thing I would do is connect your laptop to the LC-1 and make that analog output is configured correctly and AFR matches on laptop (serial) vs gauge (analog)-- if you haven't already done that to confirm the gauge is displaying accurate info.
I will do that and report back
the area that circled is where the wideband o2 is installed
Last edited by Stroker87; Apr 9, 2015 at 06:18 PM.
DB gauge uses an analog output from the LC-1. First thing I would do is connect your laptop to the LC-1 and make that analog output is configured correctly and AFR matches on laptop (serial) vs gauge (analog)-- if you haven't already done that to confirm the gauge is displaying accurate info.
+1 on that. I've heard that on board AF gauges are very sensitive to voltage. Our C5's aren't know to have great electrical systems (ground issues). I would confirm against a laptop.
On my LC-2 it was within 0.1 or so.... if you're feeling really crafty you can alter the output a little to make it your gauge be spot on, but only 0.1 error it's no biggie. The LC-1 is much more sensitive to grounding though... you'll notice it has 2 grounds- power and signal. Most guys just twist them together and bolt it to the frame or whatever, but really you should be using a proper signal ground for that wire. Apparently Innovate got tired of dealing with that though, because in all of their newer stuff they just have a single ground wire.
On my LC-2 it was within 0.1 or so.... if you're feeling really crafty you can alter the output a little to make it your gauge be spot on, but only 0.1 error it's no biggie. The LC-1 is much more sensitive to grounding though... you'll notice it has 2 grounds- power and signal. Most guys just twist them together and bolt it to the frame or whatever, but really you should be using a proper signal ground for that wire. Apparently Innovate got tired of dealing with that though, because in all of their newer stuff they just have a single ground wire.
the manual said ground every thing to the same grounding point so i did?
the manual said ground every thing to the same grounding point so i did?
I downloaded the latest manual and you are absolutely right. That's funny... a few years ago, it spelled out what each ground should be grounded to etc....had a whole big blurb on it. I honestly think over time they have had too many install issues/questions from it so they just tell guys to ground them together now (notice all of their newer products only have a single GND for simple install).
Either way it's prob not going to cause a huge offset (like 0.1 or whatever), so it's not a big deal. Let us know how the computer/serial readout compares to the gauge.
i plugged in the laptop to the LC-1 and monitored the gauge and the gauge on the laptop could not really tell since the change so fast, so i recorded it then replayed it and paused /play many times i'd say 90% of the time the gauge in the pillar was 0.2 lower then what the gauge on the laptop displayed, I really dont think it enough to mess with the setting?
so that means the car is 11.9 down to 11.4 under WOT, I also forgot to mention I got codes P0172 and P0175 (Rich bank 1 Rich Bank 2) but those only popped up when cruising steady some times at speeds around 20 to 30 mph i'd say 3 times in 4k mile worth of driving in cold weather (35 degrees or so)
I have a fast 92 /ls2 TB never installed them since i want to do heads and cam then tune so wondering since it rich if that will help or make to it lean??
2020 Corvette of the Year Finalist (performance mods)
C5 of Year Winner (performance mods) 2019
what is the gauge reading at idle and while cruising?... mine bounces around in the 14's at idle and cruise and will max my gauge out at 16 (lean) on decel with my foot off the gas pedal... if it's reading 11.9 all the time except wot I would get the tune looked over... you don't happen to have a mail order tune do you??
what is the gauge reading at idle and while cruising?... mine bounces around in the 14's at idle and cruise and will max my gauge out at 16 (lean) on decel with my foot off the gas pedal... if it's reading 11.9 all the time except wot I would get the tune looked over... you don't happen to have a mail order tune do you??
i have not put a lot off miles but a quick drive and it showed cursing it was bouncing 14.3 to 15.2, decel it hit 17 to 18 for a touch, the 11.9 / 11.4 is WOT & idling once up to temperature its bouncing between 14.5 to 15.3
a/f ratio rich?
any one?