code for exhaust back pressure
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code for exhaust back pressure
First just want to THANK everyone for information on a bad cmp Helped me alot. Seached the web for problem I was having with my stroker and this site came up with the answer. While searching for the problem with my truck I checked the codes and had 5 diffrent codes two had to do with the cmp the other was low voltage because I cranked the batteries dead. one of the others was my exhaust back pressure senser. after cleareing codes this one will not clear? is this in any way caused by mods that I have done? 4" exhaust, superchip, K&N filter, boost and pyrometer Gages. also is it a problem? Also I am hearing bad things about K&N air filter? THANKS largemouthman
2000 f250 4x4 crew What a truck!!!!!!
2000 f250 4x4 crew What a truck!!!!!!
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Joined: Oct 2004
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From: Morgantown WV
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Joined: Oct 2004
Posts: 7,413
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From: Columbia, MO
Welcome to the forum. I'm glad we were able to help once already.
Do you know what the code number is? There are several different codes for the exhaust backpressure sensor, input low, input high, ect...
My guess is that you've just got a clogged sensor tube. The sensor is located just in front of the HPOP. There's a metal tube connected to it underneath the sensor that runs to the passenger side exhaust manifold. This is what senses the exhaust backpressure. Often times, it becomes clogged with soot from the exhaust. I don't remember the exact method, but it should involve taking the sensor off the tube and clearing it out with some compressed air. You might run a search on the forum for it if no one else chimes in with the solution. But, you'll probably want to clean it out. The exhaust backpressure sensor tells the computer when to open the EBPV, if it's closed during the first few minutes of a cold start. If the EBPV stays closed, you'll have no power.
Do you know what the code number is? There are several different codes for the exhaust backpressure sensor, input low, input high, ect...
My guess is that you've just got a clogged sensor tube. The sensor is located just in front of the HPOP. There's a metal tube connected to it underneath the sensor that runs to the passenger side exhaust manifold. This is what senses the exhaust backpressure. Often times, it becomes clogged with soot from the exhaust. I don't remember the exact method, but it should involve taking the sensor off the tube and clearing it out with some compressed air. You might run a search on the forum for it if no one else chimes in with the solution. But, you'll probably want to clean it out. The exhaust backpressure sensor tells the computer when to open the EBPV, if it's closed during the first few minutes of a cold start. If the EBPV stays closed, you'll have no power.
