EBPS Questions?
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Senior User
Joined: Sep 2007
Posts: 271
Likes: 1
From: Roberta, GA
EBPS Questions?
I removed the EBPS & Tube yesterday, it was packed full of soot, It took lots of time and patience & 120 psi of air to get it opened back up, it did have a 1/8" hole in the side, I jb welded the hole shut, but how do I know if the sensor is any good? The check engine light is not on. Can I just get the EBPS sensor eliminator for this and be done with it. Thanks
Laughing Gas
Joined: Jul 2003
Posts: 1,157
Likes: 1
From: Littleton, Colorado
The Exhaust Back-Pressure sensor is a variable capacitor sensor that is supplied a 5-volt reference signal by the PCM and returns a linear analog voltage signal that indicates pressure. The Exhaust Back-Pressure sensor measures the pressure in the RH exhaust manifold. This sensor is used in conjunction with the exhaust back-pressure regulator to form a closed loop exhaust back-pressure control system.
The exhaust back-pressure is controlled by the PCM to provide more heat to the coolant for cab heating when ambient air temperature is below 7°C (45°F) and engine oil temperature is below 75°C (167°F) during low load, low speed operating conditions.
An open or short in the Exhaust Back-Pressure sensor wiring will result in a low out of range voltage at the PCM, and the PCM will disable Exhaust Back-Pressure control.
If you use a scan tool and don't get a code from P0470 to P0478 the system is working normally. Also, it'll still come on when the temps are low enough and go away with some throttle. If there's a problem with the sensor, the PCM usually will disable the system.
A lot of guys do fine with the eliminator. The jury is still out on whether it'll cost you mpg's though.
Austin
The exhaust back-pressure is controlled by the PCM to provide more heat to the coolant for cab heating when ambient air temperature is below 7°C (45°F) and engine oil temperature is below 75°C (167°F) during low load, low speed operating conditions.
An open or short in the Exhaust Back-Pressure sensor wiring will result in a low out of range voltage at the PCM, and the PCM will disable Exhaust Back-Pressure control.
If you use a scan tool and don't get a code from P0470 to P0478 the system is working normally. Also, it'll still come on when the temps are low enough and go away with some throttle. If there's a problem with the sensor, the PCM usually will disable the system.
A lot of guys do fine with the eliminator. The jury is still out on whether it'll cost you mpg's though.
Austin
Lead Driver
Joined: Feb 2000
Posts: 5,374
Likes: 46
From: Palm Bay, Florida
If I might jump in here.......what are the indications that the sensor or tube is plugged?? without removing them to inspect??
my '99 has just 77k miles on it and seems to run well gets 15mpg around town w/ a/c on and around 17 hwy (late '99 F350 dually, cc, 2wd, 7.3psd and automatic trans, 4.10.1 gears)
should I expect more mpgs?? its all stock no mods!!
my '99 has just 77k miles on it and seems to run well gets 15mpg around town w/ a/c on and around 17 hwy (late '99 F350 dually, cc, 2wd, 7.3psd and automatic trans, 4.10.1 gears)
should I expect more mpgs?? its all stock no mods!!
