Can a bad Exhaust Back Pressure sensor cause no boost and there fore no power? - Page 2

amiller93 · #16 (**permalink**) 01-22-2007, 08:50 PM

Maybe I haven't checked the build date. When it dies I'll go see brian, until then I wont worry about it.

jtharvey · #17 (**permalink**) 01-22-2007, 11:37 PM

Ron, check your eliminator with the AE software. I had the eliminator, but it had failed and was giving false readings to the PCM. Not good for power. I ended up getting a new sensor and hooking it back up. I got my sensor on eBay, new, for $25 thanks to the keen eye of Mr. Alan Miller.

Thanks again for that find Alan.

ron's power stroke · #18 (**permalink**) 01-23-2007, 05:19 PM

Quote:

Originally Posted by jtharvey

Ron, check your eliminator with the AE software. I had the eliminator, but it had failed and was giving false readings to the PCM. Not good for power. I ended up getting a new sensor and hooking it back up. I got my sensor on eBay, new, for $25 thanks to the keen eye of Mr. Alan Miller.

Thanks again for that find Alan.

thanks for the heads up..ill add that to my list of things to doooo..whats a good reading on that??

jtharvey · #19 (**permalink**) 01-23-2007, 10:45 PM

I knew my eliminator was failed because the reading would be the same whether it was plugged in or no sensor was plugged in, I think it was around 46 psi. It didn't change. My bad sensor though was reading 52+ psi. If I understand the eliminator correctly, it should probably not read anything over 10-20 psi. Think about it like this, if the stock turbo can hit maybe as high as 20 or so psi in a completely stock truck, and the backpressure to boost ratio is 2:1, a stock sensor should only see 40 psi. The eliminator is designed to provide a low reading, and when it did work I would get a soft code that exhaust backpressure was low (which is when compared to boost). So, I'm thinking the 10-20 psi would be where it sits if it's working.

elitestroker · #20 (**permalink**) 02-11-2007, 09:34 AM

I am thinking about putting the exhause brake on mine. Did the EBPV work good for you?

Quote:

Originally Posted by ron's power stoke

alan i have a Eliminator in place of my EBPS..my EBPV is a exhaust brake now and it does not get used on the cold start package..unless i turn it on my self...whats your thoughts on that good or bad??? thanks

ron's power stroke · #21 (**permalink**) 02-11-2007, 09:43 AM

yes it works very well..i have the SP diesel set up with the tc/lock and it works great..the sevice i got from them sucket though..im not sure how it rates with a real exhaust brake..ive asked but no responce on that question..but im very happy with what i got now..m/t driving i hardly ever use my service brakes..i just put all new brakes all the way around except 1 cailiper...cost me over $350 to do them..i can see with the exhaust brake the savings on the sevice brakes.the exhaust brake will pay for its self...

this is what i have..it uses the cc buttons
http://www.spdiesel.com/

TRICOMEDIC19 · #22 (**permalink**) 08-07-2007, 11:23 AM

Hey Guys... I took my truck into the local Diesel guy to see why it was running like a turd and had the romp romp.. well, he couldnt find ANYTHING wrong with it but it did throw a code for Exhaust back pressure being out of range... He said dont worry about it and it didnt matter but after reading these posts, I think he's full of it????
Any thoughts?

tholt34 · #23 (**permalink**) 08-07-2007, 12:43 PM

My Edge evo will read back pressure in its data stream mode, what should be a good reading of backpressure?

jtharvey · #24 (**permalink**) 08-07-2007, 10:32 PM

With a stock turbo, it will typically read about twice what your boost pressure is. You can test to see if it's calibrated properly by taking a reading before you start the truck, with the key on. It should be +/- 2 psi of your local atmospheric pressure, which you can find online at weather.com. You should then see it go up when you start the truck and move in proportion to boost.