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Need some help with EBV sensor

7408 Views 15 Replies 7 Participants Last post by  spdiesel
I found diesel soot around the fuel filter and GPR, which puzzled me until I found a hole in the little tube running from the exhaust manifold to the EBV Sensor.

Since I don't have an EBV anymore, I'm tryin to decide what to do with the sensor. I know it controls the EBV in cold weather, but does it do anything else regarding performance?

Dennis at ITP suggested routing boost pressure to the EBV sensor so it has something to see, keeping the PCM happy. But it uses -05JIC fittings and I'm having a little trouble finding them locally.

Anyone have any experience with this? Will I piss off the PCM if I simply unplug the sensor and chuck it? By "piss off" I mean affect performance or set the SES light: I don't care if it sets a "look at the bad sensor" code.

So what do you guys think? Thanks in advance /ubbthreads/images/graemlins/biggrin.gif
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I have some of the same concerns the OP has as I have the van turbo with no EBPV. I have the EBP tube intact with the sensor in place and plugged in. When I had the stock turbo I just unplugged the EBPV at the turbo pedestal to disable it but now it it completely eliminated.

OP - I asked a question a long while back about what exactly the EBPV sensor had input on or what engine controls the EBPV had "influence" over. I got alot of intellignet answers that all boiled down to 1) it influences alot of engine parameters and 2) nobody knew all of what it influenced.

My question for HnH (et all) is I just had my PSD hooked up to AE last weekend and at an idle or no boost the EBP was reading a steady 28.XX to 29.XX and the MAP sensor was reading 11.3 at the same time. I was told that these readings should be a whole lot closer to each other at an idle or zero boost? These sound like the two readings that HnH is using to measure "drive pressure", correct? When boosted (~15 psi) the MAP sensor and the EBP sensor both jumped about 15 psi to 27 and 44 respectively. Any thoughts? Is one of the two sensors reading incorrectly?

Not really a thread hijack but intended to just add to the OP's questions.
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OK, that helps. The MAP sensor seems to be the one in the correct range. It was lower than your reading but we were at ~3500' elevation too.

So your EBP sensor was reading high and you replaced it?
OK, so if we combine a couple of posts in this thread I see that the EBP sensor should read around 13-14 psi at idle and will defuel the engine at 45 psi. This says to me that anybody and everybody that can make more than 31 or 32 psi of boost is going to defuel unless the have both a MAP overboost eliminator of some sort AND an EBPS overpressure eliminator of some sort. Logical conclusion or ???

I still have stock injectors so I don't think this is going to apply to me anytime soon. /ubbthreads/images/graemlins/laugh.gif But that does mean that the 1:1 ratio of hooking the EBS to the MAP line would work in my case. I am interested in those results! Thanks Dennis and Firedogbme. I am also interested to see if hooking the EBS to the MAP sensor would have any advantages over the "dongle" (variable EBP readings as opposed to constant)?
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