Knock Sensor wiring
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Knock Sensor wiring
I have a few questions about knock sensor circuit .
This is a 2001 ford ranger XLT, 2.3L, 5 speed standard shift, 2 wheel drive.
Been having trouble with performance for several weeks (lean code). NO vacuum leaks, Found the MAF and MAP sensors were not working correctly(new ones on order)
Then I get a code for knock sensor, (p0325 I think). I pulled 3 from the savage yard. All tested about 500K ohms. I put one of those on the truck, reset ecm, but still had the the knock sensor code.
I can not find anything about testing the knock sensor circuit. Two wires, I think one should be ecm ground and the other 5 volts during closed loop. I have nether 5 volts or ground, on ether wire. I think I have a connection problem.
Questions;
1 Should I have 5 volts and ground, on those knock sensor wires? Closed loop only?
2 Should the resistance be about 500K ohms across a good knock sensor?
3 What are the pin numbers at the ecm connector for the knock sensor? (a diagram would be nice)
This is a 2001 ford ranger XLT, 2.3L, 5 speed standard shift, 2 wheel drive.
Been having trouble with performance for several weeks (lean code). NO vacuum leaks, Found the MAF and MAP sensors were not working correctly(new ones on order)
Then I get a code for knock sensor, (p0325 I think). I pulled 3 from the savage yard. All tested about 500K ohms. I put one of those on the truck, reset ecm, but still had the the knock sensor code.
I can not find anything about testing the knock sensor circuit. Two wires, I think one should be ecm ground and the other 5 volts during closed loop. I have nether 5 volts or ground, on ether wire. I think I have a connection problem.
Questions;
1 Should I have 5 volts and ground, on those knock sensor wires? Closed loop only?
2 Should the resistance be about 500K ohms across a good knock sensor?
3 What are the pin numbers at the ecm connector for the knock sensor? (a diagram would be nice)
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From: SW Va
I have a few questions about knock sensor circuit .
This is a 2001 ford ranger XLT, 2.3L, 5 speed standard shift, 2 wheel drive.
Been having trouble with performance for several weeks (lean code). NO vacuum leaks, Found the MAF and MAP sensors were not working correctly(new ones on order)
Then I get a code for knock sensor, (p0325 I think). I pulled 3 from the savage yard. All tested about 500K ohms. I put one of those on the truck, reset ecm, but still had the the knock sensor code.
I can not find anything about testing the knock sensor circuit. Two wires, I think one should be ecm ground and the other 5 volts during closed loop. I have nether 5 volts or ground, on ether wire. I think I have a connection problem.
Questions;
1 Should I have 5 volts and ground, on those knock sensor wires? Closed loop only?
2 Should the resistance be about 500K ohms across a good knock sensor?
3 What are the pin numbers at the ecm connector for the knock sensor? (a diagram would be nice)
This is a 2001 ford ranger XLT, 2.3L, 5 speed standard shift, 2 wheel drive.
Been having trouble with performance for several weeks (lean code). NO vacuum leaks, Found the MAF and MAP sensors were not working correctly(new ones on order)
Then I get a code for knock sensor, (p0325 I think). I pulled 3 from the savage yard. All tested about 500K ohms. I put one of those on the truck, reset ecm, but still had the the knock sensor code.
I can not find anything about testing the knock sensor circuit. Two wires, I think one should be ecm ground and the other 5 volts during closed loop. I have nether 5 volts or ground, on ether wire. I think I have a connection problem.
Questions;
1 Should I have 5 volts and ground, on those knock sensor wires? Closed loop only?
2 Should the resistance be about 500K ohms across a good knock sensor?
3 What are the pin numbers at the ecm connector for the knock sensor? (a diagram would be nice)
Lots of historical & trouble shooting unknowns.
A number of things can cause lean codes, so It might be helpful if you'd post All of the trouble code Numbers, as they can often help focus a trouble shoot.
Seeing as how you seem to like performing your own diagnostics & repair wrench turning, it might also be helpful to know which scan tool, or code reader your using.
Were the sensors your replacing testing bad, or did you have out of range, or lacking operational PID's, or trouble codes for them, or are you just replacing them on a hunch?
Some more beginning thoughts to try & help get our minds wrapped around ways to determine just what the root cause of your woes really are.
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