Originally Posted by
bmoredjspecialk 
Removing the plug to the temp sensor did not trigger the fans to come on. You could hear the idle go up a bit when I unplugged it though.
If I route power directly to the fans, then they work.
I'm thinking relay might be bad.
Didnt see this... With the car running, if you unplug the temp sensor (2-plug one), your fans should come on!
Test the temp sensor with a ohm meter as follows:
-------[||]--
[|| A || B ||]
------------
Ohm test:
Start the engine.
Disconnect the 2-wire Engine Coolant Temp Sensor harness connector (fans should come on). Turn off car, disconnect fans, and restart car.
- Check for resistance across terminals as follows:
: Temp 68deg = 2.1 - 2.9k ohm
: Temp 122deg = 0.68 - 1.0k ohm
: Temp 176deg = 0.30 - 0.33 ohm
ECT Harness Voltage test:
Turn OFF Ignition, Disconnect Engine Coolant Temp sensor and test the harness plug using the diagram above and test as follows:
Power Supply: Turn ON Ignition, Check voltage between terminal
B and ground: Approx 5V
Ground Circuit: Turn OFF Ignition, Check voltage between terminal
A and engine ground: Continuity should exist
I suspect your Temp sensor or the harness is done too!! Your MAF wiring caused alot of damage..
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