j_k_auto
12-25-2006, 01:07 AM
MERRY CHRISTMAS TO ALL AND THANKS FOR LOOKING MY POST OVER
I am tring to see if my map and baro sensors are working correctly.
I was searching the forurms since yesterday and looked over alot of forurms.
As for testing the map sensor here is what I found.
I just want to make sure this is what I need to do so I can get this done.
If my info here is right it should be the light green wire/terminal B on the MAP sensor. You will have to slip a paper clip or something in along the wire and leave the wiring hooked up to the sensor.
There is only two sensors on the upper intake. The IAT and the MAP. The IAT is the sensor attached by threading the sensor in and the MAP is the one with two screws holding it onto the upper intake.
Here is a quick rundown of the voltage you will see if everything is working right:
0psi=2.45v
2psi=2.79v
4psi=3.13v
6psi=3.47v
8psi=3.82v
9psi=3.99v
10psi=4.16v
11psi=4.33v
12psi=4.5v
14psi=4.84v
14.31psi=4.9v
As far as the baro testing here is what I found. Is there a different way to check this baro sensor out?
The Baro sensor on the firewall, used on ""F" engines, will indicate +4.9v at 14.7psia Atmospheric Pressure.
Used to input the minor variations in Barometric Pressure, the PCM reads it once each time the engine is started, altering the injection processes based on Altitude referenced to Sea Level.
thanks joe
I am tring to see if my map and baro sensors are working correctly.
I was searching the forurms since yesterday and looked over alot of forurms.
As for testing the map sensor here is what I found.
I just want to make sure this is what I need to do so I can get this done.
If my info here is right it should be the light green wire/terminal B on the MAP sensor. You will have to slip a paper clip or something in along the wire and leave the wiring hooked up to the sensor.
There is only two sensors on the upper intake. The IAT and the MAP. The IAT is the sensor attached by threading the sensor in and the MAP is the one with two screws holding it onto the upper intake.
Here is a quick rundown of the voltage you will see if everything is working right:
0psi=2.45v
2psi=2.79v
4psi=3.13v
6psi=3.47v
8psi=3.82v
9psi=3.99v
10psi=4.16v
11psi=4.33v
12psi=4.5v
14psi=4.84v
14.31psi=4.9v
As far as the baro testing here is what I found. Is there a different way to check this baro sensor out?
The Baro sensor on the firewall, used on ""F" engines, will indicate +4.9v at 14.7psia Atmospheric Pressure.
Used to input the minor variations in Barometric Pressure, the PCM reads it once each time the engine is started, altering the injection processes based on Altitude referenced to Sea Level.
thanks joe