LC-1 Wideband Problem...

[ViperRichRT10]

My LC-1 read a constant reading of "20" the other day when I was driving in 100+ degree weather here in Hotlanta. Anyone know what that means? Is that some sort of error code when it gets too hot?

Thanks,

Rich

[KenH]

When you first cold start the car, the AIT should always read the ambient air temp. Sounds like you may have a wiring problem.

On the HP/TQ, make sure that you select the gear that you do the pull in. I don't think you can get an accurate reading in 1st and perhaps 2nd if you get wheel spin. I prefer 3rd.

Also, if you have different rear gears or tire size, you need to change the gearing setting in the software. I could get mine fairly close by fiddling with it (580's with VEC2 and 570's on dyno for horsepower, torque was about 50ft/lb higher with the VEC). I mainly found it useful for finding dips in the curves that might indicate a need for more timing at those points, etc.

[ViperTony]

To close the thread on this particular topic, the issue with the IAT temperature was with the IAT sensor wiring, specifically a short. It seems that when the IAT sensor has an issue, the output reads 145.5. After fixing the short, all is well.

As for HP/TQ, the Vec3 cannot accurately calculate these numbers. You will not see numbers as you would on a Dyno. Members that have the Vec3 and Roe read 250 peak HP on their pulls...others more some less. My HP/TQ numbers are off as much as 40% compared to my dyno numbers. At best its good for relative measurements in case you want to see if that airbox, plug change, rocker upgrade, etc. did anything for you. Now that I know the delta between my Vec3 HP/TQ and Dyno numbers I'm good. Where's Damn Yankee???