codes and questions
Hello, just ran my codes and I'm not sure where some of this stuff is.
'91 F150 5.0:
Continuous code 33: EGR Valve opening not detected
Engine Running codes: 25: Knock not sensed
72: Insufficient MAF/MAP change
73: Insufficient TP change
So I don't know where the knock sensor is to check it. Any advice on the other codes would be greatly appreciated. I've been pouring over my Haynes and it doesn't tell me the location of the knock sensor. Also, what I believe is my TPS is impossible to reach. The truck idles at about 700rpm and sounds kinda rough. What should be a good idle rpm? Also, how do I tell if I have an aluminum radiator or not?
'91 F150 5.0:
Continuous code 33: EGR Valve opening not detected
Engine Running codes: 25: Knock not sensed
72: Insufficient MAF/MAP change
73: Insufficient TP change
So I don't know where the knock sensor is to check it. Any advice on the other codes would be greatly appreciated. I've been pouring over my Haynes and it doesn't tell me the location of the knock sensor. Also, what I believe is my TPS is impossible to reach. The truck idles at about 700rpm and sounds kinda rough. What should be a good idle rpm? Also, how do I tell if I have an aluminum radiator or not?
Last edited by lumpster; Mar 20, 2010 at 04:51 PM.

