[quote]and the tester codes come back to the MAP sensor. Even though I just replaced it. [Quote]
It is quite possible that the problem lies in the wiring. You may want to check your wires to the MAP sensor. You may have loose, frayed, broken, or disconnected wire along the way from the sensor to the ECM.
[quote]. It plugs into the air filter box to read back air flow I would imagine. [Quote]
That is your Intake Air Temperature (IAT) Sensor. You should have continuous approx. 5 volts to the sensor at all times. At cold temperatures, you should high resistance across the two terminals (70 degrees F = 3400 ohms) and higher ambient temperature will have lower resistance (212 degree F = 185 ohms)
[quote]would I be able to use a light tester to make find out if it was getting power? And if so. What would be reason if it wasnt getting any power?[Quote]
You can't use test light. You have to use DVOM - digital voltage/ohm meter. First check the voltage on the harness to the sensor, and check the resistance across the terminals. If there is no power to the harness, then you need to check for broken, frayed, etc wires, just like your MAP sensor.
Wednesday, January 28th, 2009 AT 11:14 PM