MAP sensor question?
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Lead Driver
Joined: Mar 2004
Posts: 5,372
Likes: 108
From: Northern Indiana
MAP sensor question?
Does the Map sensor have anything to do with the EBRP sensor? Alright, these are the details. Block heater pulled in all night, cold start with driving right after. I go easy on the throttle. It comes and goes but sounds like air rushing under the hood. Somebody said my EBP valve might be sticking. When it happens it feels like a loss of power, but if I accelerate more it will kick in and drive normal. Found out today the line to my MAP sensor was cracked where it connects to the intake Y. Could that have been what is causing the noise? Or was it just a fluke?
Side note the EBRP sensor and tube is brand new.
Side note the EBRP sensor and tube is brand new.
Posting Guru
Joined: Feb 2009
Posts: 1,325
Likes: 4
From: Blaine, TN
The map sensor i believe is only used for fuel mapping, nothing related to ebpv. If you have ever blown the line off the map sensor it will barely move out of its way going down the road, so if under slight throttle if it is cracked and leaking it could cause a loss of power until you give it throttle and your boost over comes the leak, however that problem shouldnt come and go, it would be a constant problem. To me it also sounds like a sticking ebpv, try unplugging the connector on the pedestal before your next drive, if the problem stops you know the ebpv is the problem.
Post Fiend
Joined: Nov 2007
Posts: 9,549
Likes: 14
From: Payson, AZ
Cory,
I haven't seen you around for a while. Nice to see you posting again.
Bottom of pedestal.
I haven't seen you around for a while. Nice to see you posting again.
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Lead Driver
Joined: Mar 2004
Posts: 5,372
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From: Northern Indiana
Thank you very much Robin. If it is sticking, what is the best fix? I am believing thats what it is because come to think about it the truck doesn't go into the jet engine sound exhaust when it is cold anymore. It does slightly but nothing like it did before I replaced the sensor and tube.
Posting Guru
Joined: Feb 2009
Posts: 1,325
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From: Blaine, TN
Thanks Robin for the picture, and i know, ive been tied up with so much moving to nevada for awhile, then back to tn, getting married and property now, its good to be back
Seth, if you remove the valve, just give it a good cleaning to get all of the built up soot and deposits out of it
Seth, if you remove the valve, just give it a good cleaning to get all of the built up soot and deposits out of it
Hotshot
Joined: Jan 2011
Posts: 18,849
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From: Puget Sound
A cracked MAP line will hiss big time, that's your boost pressure.
The last link in my signature talks about EBP, vs. MAP, vs. Baro.
The last link in my signature talks about EBP, vs. MAP, vs. Baro.
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Post Fiend
Joined: Nov 2007
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From: Payson, AZ
She's a lucky woman, and you're probably an even luckier man.
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Lead Driver
Joined: Mar 2004
Posts: 5,372
Likes: 108
From: Northern Indiana
Okay. So the valve can be removed. I am guessing that is pretty straightforward as to how to do it. Unlike the connector which I can't even get to it with my arms to disconnect. Gonna had to take a intercooler pipe off to get to it. Probably will just clean it while I am there and see what happens. Thanks again Robin. Does anybody have a write up on cleaning the valve?
Post Fiend
Joined: Nov 2007
Posts: 9,549
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From: Payson, AZ
The EBPV is in the turbo exhaust housing. The only way to get to it without removing the turbo is to remove the exhaust down pipe.
Even then there is not enough room to really clean it.
What you should due first is disconnect the EBPV actuating rod and work the valve open and closed to see if it is sticking. The rod is held to the pivot pin with a sliding clip. You have to push the clip back to disengage the rod from pin. The rod drops down to disengage.
Even then there is not enough room to really clean it.
What you should due first is disconnect the EBPV actuating rod and work the valve open and closed to see if it is sticking. The rod is held to the pivot pin with a sliding clip. You have to push the clip back to disengage the rod from pin. The rod drops down to disengage.
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