Tuned without Iat connected
I recently got my LS1 rebuilt and tuned straight after. I got decent numbers from the tuner and after a few weeks noticed the IAT sensor was unplugged. I've since plugged it back in.
I have a maffless tune and wondered how the tune occurred with an IAT sensor connected. Will this work as expected now that the IAT is connected or would it now need to be retuned? I didn't notice any difference in power or fuel economy since its been reconnected.
Any insight would be greatly appreciated
IAT disconnected reads -40F which causes a rich condition.
If it was tuned around that, the tune will be very lean when the IAT is reconnected.
The trims will be adding fuel.
Trending Topics
The Best V8 Stories One Small Block at Time
STFT will look like that, not sure what you are measuring with?
But they are centered around 0. Which is good.
Is the IAT reading temp now? if so, unplug it again and see what the trims do.
Intake temp stayed constant at 33 degrees celcius (91 Fahrenheit). Surprised it stayed at that temp during a 20min trip. I did unplug it while it was running and it didn't update to - 40 or change at all but wasn't sure if this was a safety measure. The car is in the workshop so can't switch it on unplugged to see what happens. I'm just using a Bluetooth obd2 scanner.








