Exhaust Backpressure Sensor/ Sluggish Truck
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Freshman User
Joined: Jan 2013
Posts: 28
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From: CT
Exhaust Backpressure Sensor/ Sluggish Truck
Goodmorning guys,
I was recently reading through some instructions on DieselORings and came across this Welcome to guzzle's Exhaust Backpressure Sensor Cleaning Maintenance Web Page it tells you how to clean your EBPS. The only question I have is I replaced my stock EBPV pedestal to the Non-EBPV pedestal and also put a non EBPV exhaust outlet housing on my GTP38r. I definitely notice a decrease in fuel mileage and when my truck shifts into 4th gear its almost like a sudden loss of power, my boost pressure plummets and it acts very sluggish. It also shifts through 3rd pretty quickly when I get on it. It is also sluggish off the line, I can mash the pedal and it will stay below 2000 RPM for a second or two and not do anything before it finally boosts a little and then it is fine. I have already checked for boost leaks and there arent any. I wasnt sure if I needed to do anything else with the EBPS since all I did was remove the actual valve? Could this be affecting my mileage? Also any idea why it is so sluggish now and there is very little response in 4th gear?
Truck is a 2000 7.3PSD, 6637 filter, 5inch exhaust, TS 6pos chip w/stock tunes, GTP38r w/ banks big head, autometer gauges
Thanks for the help guys
I was recently reading through some instructions on DieselORings and came across this Welcome to guzzle's Exhaust Backpressure Sensor Cleaning Maintenance Web Page it tells you how to clean your EBPS. The only question I have is I replaced my stock EBPV pedestal to the Non-EBPV pedestal and also put a non EBPV exhaust outlet housing on my GTP38r. I definitely notice a decrease in fuel mileage and when my truck shifts into 4th gear its almost like a sudden loss of power, my boost pressure plummets and it acts very sluggish. It also shifts through 3rd pretty quickly when I get on it. It is also sluggish off the line, I can mash the pedal and it will stay below 2000 RPM for a second or two and not do anything before it finally boosts a little and then it is fine. I have already checked for boost leaks and there arent any. I wasnt sure if I needed to do anything else with the EBPS since all I did was remove the actual valve? Could this be affecting my mileage? Also any idea why it is so sluggish now and there is very little response in 4th gear?
Truck is a 2000 7.3PSD, 6637 filter, 5inch exhaust, TS 6pos chip w/stock tunes, GTP38r w/ banks big head, autometer gauges
Thanks for the help guys
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Freshman User
Joined: Jan 2013
Posts: 28
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From: CT
It started right before my old turbo **** the bed. The banks big head was on my old turbo and I believe was adjusted correctly (6 turns past being fully threaded on) at least that's what the instructions said. It could be that though when I pull the turbo to do my up pipes I will double check that. I didn't know if it was my MAP sensor maybe? Or if it was something else. I did have a boost leak in the intercooler boot on the drivers side which I fixed but it still is sluggish
Post Fiend
Joined: Nov 2007
Posts: 9,549
Likes: 14
From: Payson, AZ
You need to get a scantool hooked up to see if the EBP sensor is functioning properly, as well as other sensors. The EBP sensor is not there just for the EBPV function. The PCM uses the EBP sensor info, as well as other parameters like MAP, as part of the fueling scheme.
FYI:
People who unplug the EBP sensor and say all is well are just fooling themselves. With it unhooked the PCM uses default EBP and the truck just will not run as efficiently without true EBP values.
FYI:
People who unplug the EBP sensor and say all is well are just fooling themselves. With it unhooked the PCM uses default EBP and the truck just will not run as efficiently without true EBP values.
Elder User
Joined: Jun 2007
Posts: 705
Likes: 1
From: Sandia Park, NM
You need to get a scantool hooked up to see if the EBP sensor is functioning properly, as well as other sensors. The EBP sensor is not there just for the EBPV function. The PCM uses the EBP sensor info, as well as other parameters like MAP, as part of the fueling scheme.
FYI:
People who unplug the EBP sensor and say all is well are just fooling themselves. With it unhooked the PCM uses default EBP and the truck just will not run as efficiently without true EBP values.
FYI:
People who unplug the EBP sensor and say all is well are just fooling themselves. With it unhooked the PCM uses default EBP and the truck just will not run as efficiently without true EBP values.
Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
I just replaced my EBP sensor yesterday and drove to work today (45 miles). My fuel gauge slowed right down and my wheels speeded right up... gotta go easy on my tires now. I have AE, so it just took a few seconds to spot my problem.
Last link in my signature will give some troubleshooting tips.
Last link in my signature will give some troubleshooting tips.
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