Intake Air Temp Sensor Bad?

[greeneyegi]

What size is the resistor in the sensor?

 

[mikestertwo]

Stuck it in the freezer for 10 minutes. Ohmed out 1298 and started to drop very rapidly...1298 equals roughly 113 and when it drops that's approaching 130 degrees. Coming out of the FREEZER? How does my sensor do the exact opposite of resistance theory lol.

The sensor is a thermistor. It's resistance drops with the increase in temperature. Varistors increase resistance with increase in temperature.

 

[mikestertwo]

What size is the resistor in the sensor?

Depends on the temperature

 

[salvageV6]

70 degrees is 3400 ohms if you want to trick your ECM into thinking you are living in San Diego.

 

[TexasT]

Fast Response GM Intake Air Temperature Sensor IAT MAT/ACT Kit 25036751 25037225 | eBay

Sensor Body Material: Brass. 1986-1990 For Pontiac Sunbir. 1989-1990 For Pontiac Lemans. 1985-1986 For Pontiac J2000 Sunbird. 1985-1991 For Pontiac Grand Am. 1985-1992 For Pontiac Firebird. 1985-1988 For Pontiac Fiero.

www.ebay.com

I keep em on hand as we have "several" gm vehicles. You can get just the sensor for a little less but I've had cases where the pigtail was the problem.