I have mine off on my personal car.
Any idea what the computer is basing it's guess on? I wonder if it's from the MAF metering the amount of air coming in and then referencing the O2 sensors in the headers to determine the mixture the car's been running and then using some magic formula to guess the resulting cat temp. I guess in theory if they knew sort of factory minimum and maximum realistic temps they could use the O2s alone since exhaust temp correlates nicely with fuel mixture. Probably aren't going out of their way trying to modify that formula against the amount of air metered (for higher power applications). Wonder how accurate, you ever data log your gauge output along side the factory inferred output? Would be super curious to see that!
Im sure they are using the fancy lab they have, and loads of math that is well above my pay grade (or understanding lol)
Yes, its not even close.
6 sensors total.
You shouldn’t have brought it up if you don’t feel the need to talk about it. Details man, details. Do the PIDs read low or high compared to your ur gauges? Also, you said earlier in other posts that you have the standard Procharger tune on your personal car, now you say it doesn’t have cats? That must mean the Procharger tune works without the cats?
opcorn:opcorn:
Huh? My car still has cats... actually everything I own that came with cats, still has them. I am a huge fan of cat converters. I said I turned OFF the cat temp protection, which is very different than removing the cats. (technically its not "off" its just been reprogramed to correct for the temperature errors that I have logged with EGT equipment)
Nice w I get it, sorry. When you said you had yours off, I interpreted that to mean the cats were off, not the protection thing in the tune. Was just curious on the PID whether it recorded high or low from actual, no biggie. ThanksHuh? My car still has cats... actually everything I own that came with cats, still has them. I am a huge fan of cat converters. I said I turned OFF the cat temp protection, which is very different than removing the cats. (technically its not "off" its just been reprogramed to correct for the temperature errors that I have logged with EGT equipment)
Since it depends on how the tuners set up their tunes and many many different factors, it's a mute point discussing the PDI's, (and how the computer uses those items in its calculation for what is the estimated cat temp). So it would be up to the tuner of your car to discuss what EGT's they actually recorded during their calibration testing.
As far as my car, well two things.
1) I have been BETA testing the transbrake function.
2) An E85 station opened down the road, so I started flex fuel tuning.
So no longer is it a "stock" ProCharger tune that ships out. We do still, however, have a computer different test cars in the fleet that remain untouched. AND customers have already been ordering the systems and enjoying them!
My guess would be that it will be "high" on most boosted applications.
