With my truck's oil pressure jumping like it did, I'm looking for a good OBD2 scanner to check it out. Preferably PC based.
Thread: OBD2 Scanner Recommendation?
Results 1 to 9 of 9
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05-23-2010 09:42 PM
Auto Enginuity??
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- Join Date
- Oct 2008
- Location
- Appleton, Wisconsin. Where we have 2 seasons... winter and road construction
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- 4,120
05-24-2010 08:17 AMI was told Autozone will do a free scan. I'm gonna stop there and see if their handheld code reader can even see my oil pressure. Worth a shot I guess.
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05-24-2010 08:48 AM
what year, make, model and engine do you have? you may not have a pcm based oil presure input to the truck. it may just be a switch style with a dummy gauge.
Now recruiting Mississippi power boaters.
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05-24-2010 01:24 PM
Logic (in a ford ) means it goes through a processor. Logic takes the input and smooths it out. so when you are at idle and at a stop light the pressure in the engine may go down to about 20 or so but the gauge should attempt to stay the same. It is just a buffer to keep things like the fuel gauge from moving back and forth when the vehicle goes over bumps and the fuel is sloshing around.
Now recruiting Mississippi power boaters.
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- Join Date
- Oct 2008
- Location
- Appleton, Wisconsin. Where we have 2 seasons... winter and road construction
- Posts
- 4,120
05-24-2010 02:10 PMIn the diagram, it looks like solid wire from the sending unit to the gauge and the logic connection is there just to monitor the sending unit and report a loss of pressure to the ECU. But then again, I have no clue!
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