IAT temps vacillating
Thread Starter
Safety Car
Joined: Nov 1999
Posts: 4,285
Likes: 83
From: S.E. WI.
St. Jude Donor '08-'09-'10
IAT temps vacillating
Logging IATs in HP Tuner. I've noticed over last couple of days IAT's swinging from 90-120 in quick succession.. I think it is MAF related. Just wanted to get 2nd opinion or see if anyone else has seen this or can render an opinion..
Thread Starter
Safety Car
Joined: Nov 1999
Posts: 4,285
Likes: 83
From: S.E. WI.
St. Jude Donor '08-'09-'10
Cruising.. I happened to look down at HPT and saw IAT needle jump up and down sporadically. I saw the same thing last week but gave it little thought. Tends to take place in cruise/lower rpm range.
IF you weren't looking, you might never notice swings in IAT!!
IF you weren't looking, you might never notice swings in IAT!!
Safety Car
Joined: Mar 2004
Posts: 4,048
Likes: 1,476
From: South Florida
If you're logging IAT and IAT2, the VMC scanner has a bug where it will chart one or the other to the gauge display in rapid succession. This makes the gauge look like its jumping up and down but that is not really happening. Look at your actual IAT value in the scanners config channel. If it doesn't jump up and down, you're seeing exactly what I described as a bug.
Thread Starter
Safety Car
Joined: Nov 1999
Posts: 4,285
Likes: 83
From: S.E. WI.
St. Jude Donor '08-'09-'10
If you're logging IAT and IAT2, the VMC scanner has a bug where it will chart one or the other to the gauge display in rapid succession. This makes the gauge look like its jumping up and down but that is not really happening. Look at your actual IAT value in the scanners config channel. If it doesn't jump up and down, you're seeing exactly what I described as a bug.
Thanks..
