Forum » EFI Tuning Fundamentals » Dual IAT sensors

Dual IAT sensors

EFI Tuning Fundamentals

Discussion and questions related to the course EFI Tuning Fundamentals


Page 1
Author
32 Views

If you have two IAT sensors, does the ECU take an average of the two readings? Are most ECU's set up to handle two IAT inputs? Also, is it a good idea to have two IAT sensors for redundancy and a more accurate IAT reading?

Totally depends on the ECU and it's firmware. On some high-end racing twin turbo setups, I know that in the past dual ECUs have been used one for each bank, turbo / wastgate. Each has their own IAT, MAP sensor, etc. If I had two separate air paths, I would think that dual IAT would make sense from a diagnostic point at least.