XD1 and LC1 verifing accuracy

**blksn955.o** · #1 (**permalink**) 02-06-09, 04:35 PM

I got my LC1 hooked up (thanks wes for the help) and installed a XD1 gauge. I do not really see any topics on how accurate this is out of the box?

It seems fairly accurate but not really sure. It shows a really fat A/F when I step into it WOT (9-10:1) every time then would from what I can tell it leans out I do need to dial in WOT area for sure, I know that going into this. I really have not been able to rap out 2nd and 3rd (did a few thousand rpms at best) but was able to get a couple in 4th several times (no full on WOT as it was just not possible when I took it out). Asking because I just want to know how to verify the xd gauge...I assume it is correct.

I also assume that if things are off at WOT...is it possible things could be going extra rich and/or extra lean? I want to say I saw an 11.2:1 a few times and a 14.5 a few times.

Things look spot on in the normal driving range a tad rich at start off in the down to the low 13's and 14.7-15.2 cruise light load. 14.6-ish at idle...cold idle was a tad rich as expected. That all confirms the logs and changes I have done so far and why my normal driving around is really issue free. Outside of messing with the idle this spring I want to do.

I will be logging with the tweecer with a switch to kill the EGR and running that annalog to the EGR for ease of tuning/making changes. Just getting an idea of how accurate the gauge is and were I am before tuning.

Thanks all

**blksn955.o** · #2 (**permalink**) 02-13-09, 12:54 PM

anyone?

Mustangless · #3 (**permalink**) 02-13-09, 04:08 PM

You could always hookup the lc1 with the serial port. Compare the numbers and see if it looks close.

BTW: If you have binary editor you don't have to log through the egr. You can use the serial port for that. No need to try and get your voltages right.

**blksn955.o** · #4 (**permalink**) 02-14-09, 09:56 AM

but how would I know either of the serial or the gauge was correct? The gauge plugs into the stereo cable just like the serial cable...so in my mind the LC1 is what I need to make sure is correct but I see no mention of how to know it if it is.

It is my understanding the voltage setup part is for the analog hookup if I was going to use the EGR method.

Nowhere in the LC1 or XD1 gauge manual does it talk about calibrating the LC1 and XD1 only the analogs.