IAT sensor
Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
What year?
In the early ECMs (before 1990) the spark timing is controlled by the CTS (Coolant Temperature Sensor) on the front of the intake manifold. I don't know about later years.
The MAT (Manifold Air Temperature) sensor in my car only controls when EGR is enabled.
In the early ECMs (before 1990) the spark timing is controlled by the CTS (Coolant Temperature Sensor) on the front of the intake manifold. I don't know about later years.
The MAT (Manifold Air Temperature) sensor in my car only controls when EGR is enabled.
