Wideband A/F issue - SRT Forums

passtschon · 06-22-2008, 03:33 PM

I installed an Innovate Wideband LC-1 and gauge 5 days ago. It worked fine for 2 days, reading @ 14.6 across the board. Today I turned on the car and the needle went through it's little test phase as it does during each startup, but pegged at 18. I know the car is not running this lean. The needle is acting very randomly, for example when I GENTLY tap the gas at a stop light, it will go all the way to 1 and back to 18. Any suggestions? Thanks.

SpeedEuphoria · 06-23-2008, 09:35 AM

is that the reading from LW or from a gauge? Open LM prog and make sure its setup for gasoline and the outputs are correct for what you need

passtschon · 06-23-2008, 11:17 AM

Quote: Originally Posted by SpeedEuphoria

is that the reading from LW or from a gauge? Open LM prog and make sure its setup for gasoline and the outputs are correct for what you need

It's the gauge reading. It read fine for a few days, and when I picked it up from the paint shop it's pegged at 18.

FraziersSRT · 06-23-2008, 11:40 AM

Well theres your problem buddy,go to the paint shop and woop some ass.

passtschon · 06-23-2008, 12:58 PM

Quote: Originally Posted by FraziersSRT

Well theres your problem buddy,go to the paint shop and woop some ass.

Aside from kicking ass lol, any idea what the problems could be? I've heard a possible exhaust leak so far... other than that I'm stuck as to what to look for.

Turbocruiser13 · 06-23-2008, 01:02 PM

Where are your grounds located for the wideband? Should be 4 of them...if you have them all in separate spots that's a bad idea. Make sure your grounds are all tied to one terminal, and on a GOOD ground. Lots of guys use bad grounding locations for this. I used a bolt on the head and never had an issue after that. Mine used to do the same thing yours is doing.

passtschon · 06-23-2008, 02:07 PM

Quote: Originally Posted by Turbocruiser13

Where are your grounds located for the wideband? Should be 4 of them...if you have them all in separate spots that's a bad idea. Make sure your grounds are all tied to one terminal, and on a GOOD ground. Lots of guys use bad grounding locations for this. I used a bolt on the head and never had an issue after that. Mine used to do the same thing yours is doing.

I'm not sure. I cut the wires that were the ground for my narrowband (installed when I purchased the vehicle) and soldered all the grounds from the wideband to this ground. I will look into it though. Thanks for the tip.

SpeedEuphoria · 06-23-2008, 11:37 PM

make a new ground for the LC-1 dont splice into the crappy stock grounds. I would say grounding is the number 1 issue with these.

If you have a laptop, connect to LM programer and make sure its setup correctly.