after my issue with a possible bad downloader and pyro readings that zero'd out at WOT, i got a new triple dog AND pyrometer. truck runs great, but the pyro still reads about 320* cruisin down the road and the highest ive seen on extreme is 1100*. mind you its been 110* here for a week now. i moved my pyro furthur back on the cast turbo elbow (FYI its post turbo mounted) and while it doenst read zero as much, the temps DROP on my outlook when i get on it, then spike as i get out of it and then read back in the 300's. noone seems to have an answer. anythoughts? thanks

 

It should be mounted pre-turbo, on the exhaust manifold.

 

I had mine post turbo for a while and had the same problem then i put it pre-turbo and i have a 300 degree differance and i haven't had a problem sense its been around 105 here in nor cal my truck runs a about 480 500 degrees