P0107 and Service Traction/ESC ESC Off??
#12
This means the MAP sensor is fried right? Also I have 140,000 miles on the car. (:
#15
Then check the connections to the MAP sensor and the oring
https://www.rockauto.com/en/catalog/...)+sensor,11207
https://www.rockauto.com/en/catalog/...)+sensor,11207
#16
Okay I just finished testing. Grey Wire (Power) shows a constant 5.0 -5.02 volts. Then tested the Orange Wire (Ground) which showed a constant 14.8 volts. The Green Wire (Signal) displays a dead 0 for volts, no fluctuating or anything when applied to vacuum.
This means the MAP sensor is fried right? Also I have 140,000 miles on the car. (:
This means the MAP sensor is fried right? Also I have 140,000 miles on the car. (:
reread step #4.
The black lead of your VOM should be grounded.
Unplug the connector. Key on run
Probe the connector pins with the red lead.
Gray (on the connector) should be 5VDC.
Orange (on the connector) should read 0Vdc and have a resistance reading other than infinite or zero when you set the VOM to Ohms.
The "signal" should vary from 1VDC to 4.5VDC, depending on vacuum. When the sensor is plugged in, key on run.
Grey is not "power" it is 5V ref, it should be rock steady 5V.
Orange/black is not ground it is low ref (sort of ground).
Green is signal.
You need to think digital not analog.
The other end of all of those wires are in the connector at the ECM.
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#17
That's not the way I read the link.
reread step #4.
The black lead of your VOM should be grounded.
Unplug the connector. Key on r
Probe the connector pins with the red lead.
Gray (on the connector) should be 5VDC.
Orange (on the connector) should read 0Vdc and have a resistance reading other than infinite or zero when you set the VOM to Ohms.
The "signal" should vary from 1VDC to 4.5VDC, depending on vacuum. When the sensor is plugged in, key on run.
Grey is not "power" it is 5V ref, it should be rock steady 5V.
Orange/black is not ground it is low ref (sort of ground).
Green is signal.
You need to think digital not analog.
The other end of all of those wires are in the connector at the ECM.
Attachment 21652
reread step #4.
The black lead of your VOM should be grounded.
Unplug the connector. Key on r
Probe the connector pins with the red lead.
Gray (on the connector) should be 5VDC.
Orange (on the connector) should read 0Vdc and have a resistance reading other than infinite or zero when you set the VOM to Ohms.
The "signal" should vary from 1VDC to 4.5VDC, depending on vacuum. When the sensor is plugged in, key on run.
Grey is not "power" it is 5V ref, it should be rock steady 5V.
Orange/black is not ground it is low ref (sort of ground).
Green is signal.
You need to think digital not analog.
The other end of all of those wires are in the connector at the ECM.
Attachment 21652
Orange gave me 14.53vdc with .237 on ohms and a beep
Grey still gave me a constant 5vdc
After I connected it back, I started it up and tested the green wire but still only got 0vdc.
Last edited by zKabi; 05-19-2017 at 11:34 PM.
#18
Where is the black lead of the VOM when you probe?
Are you probing the back of the plug.
Are you sure that's not -14.53 vdc?
What wires could you have disturbed when you did the air filter?
The low ref should not be giving a positive voltage reading.
The 5v ref seems good.
Carefully inspect the rubber hose from the air cleaner to the throttle body. Look for cracks and rips and loose clamps.
So, my guess is there are wires touching somewhere. Might be the sensor is bad, if they are cheap get one and see.
They are $3-$30 on eBay if you can wait for delivery. NEW PREMIUM HIGH PERFORMANCE MANIFOLD PRESSURE MAP SENSOR GM VEHICLES AS60 | eBay
about $40-$50 at a store. https://www.gmpartsoutlet.net/oem-pa...0ybC1sNC1mbGV4
Are you probing the back of the plug.
Are you sure that's not -14.53 vdc?
What wires could you have disturbed when you did the air filter?
The low ref should not be giving a positive voltage reading.
The 5v ref seems good.
Carefully inspect the rubber hose from the air cleaner to the throttle body. Look for cracks and rips and loose clamps.
So, my guess is there are wires touching somewhere. Might be the sensor is bad, if they are cheap get one and see.
They are $3-$30 on eBay if you can wait for delivery. NEW PREMIUM HIGH PERFORMANCE MANIFOLD PRESSURE MAP SENSOR GM VEHICLES AS60 | eBay
about $40-$50 at a store. https://www.gmpartsoutlet.net/oem-pa...0ybC1sNC1mbGV4
#20
Where is the black lead of the VOM when you probe?
Are you probing the back of the plug.
Are you sure that's not -14.53 vdc?
What wires could you have disturbed when you did the air filter?
The low ref should not be giving a positive voltage reading.
The 5v ref seems good.
Carefully inspect the rubber hose from the air cleaner to the throttle body. Look for cracks and rips and loose clamps.
So, my guess is there are wires touching somewhere. Might be the sensor is bad, if they are cheap get one and see.
They are $3-$30 on eBay if you can wait for delivery. NEW PREMIUM HIGH PERFORMANCE MANIFOLD PRESSURE MAP SENSOR GM VEHICLES AS60 | eBay
about $40-$50 at a store. https://www.gmpartsoutlet.net/oem-pa...0ybC1sNC1mbGV4
Are you probing the back of the plug.
Are you sure that's not -14.53 vdc?
What wires could you have disturbed when you did the air filter?
The low ref should not be giving a positive voltage reading.
The 5v ref seems good.
Carefully inspect the rubber hose from the air cleaner to the throttle body. Look for cracks and rips and loose clamps.
So, my guess is there are wires touching somewhere. Might be the sensor is bad, if they are cheap get one and see.
They are $3-$30 on eBay if you can wait for delivery. NEW PREMIUM HIGH PERFORMANCE MANIFOLD PRESSURE MAP SENSOR GM VEHICLES AS60 | eBay
about $40-$50 at a store. https://www.gmpartsoutlet.net/oem-pa...0ybC1sNC1mbGV4
If I test the orange wire the other way around (black to orange and red to power) I get 12.2 vdc and 0 ohms.