Help: IAT Gauge erratic behavior - 2007 S281 SC

[KGinPA]

I recently purchased 07-411 S281SC Convertible and the weather has been terrible here in PA so I haven't driven the car more than down the street and back. However, I noticed the Intake Air Temp gauge indicator bouncing from side to side while under power. Have any of you had that issue and what have you found to be the cause? It doesn't move while at idle.

[Meeker1]

I had the same needle bouncing back and forth on boost gauge . . purchased new gauge from Speedlab but also erratic reading and returned . . Speedlab suggested checking sending unit and replace . . Would be great to hear from others on fix . .

[Meeker1]

Still could use help and reply . . annoying issue and boost gauge still not working . . getting ready to pull her out from winter / virus storage and drive #1264. . Thnx

[tbar]

Did you replace the sending unit? That’s the only other thing that makes sense to me.

[Meeker1]

Took a much closer look after ordering a new $50 sending unit from Velocity Products on ebay . . noticed nut that was supposed to be attaching unit was held on by a small zip tie . . unbelievable . boost gauge works great after replacing nut .. unfortunately Velocity Products will not take return on purchased unit . . Oh well

[06 Saleen]

Has anyone founded anymore information on this problem.
Thanks

[Damageln]

Mine was resolved when I replaced the air temp sensor (shared part with the Ford Lightning.) I also changed the intercooler pump and I haven't had an issue in over 2 years.