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  #1  
Old 03-18-2013, 07:22 AM
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High boost

I have a 6.4 with the DPF deleted with the DPF-R stacked with Banks 6 Gun and IQ.

A few months ago the boost was up in the 30's under 25% throttle not towing. I cleaned both sensors and it went back to normal.

I was towing a 10,000# fifth wheel the other day and the boost was getting right up to 40 any time I went up even a little hill. I have towed this thing all over and never had the boost that high.

When driving normally again, boost is up in the 30's all the way up to 40 under 25% throttle not towing.

Do I need to replace the sensor(s)?
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Old 03-18-2013, 02:33 PM
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Check that the EBP sensor wiring is fine and the plug looks good and there's no corrosion or moisture built up, and check the tube for obstructions. If all that stuff checks out, I'd change the sensor. I'm no expert, but it sure sounds like some sort of EBP sensor issue to me. Is the truck showing any codes?
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Old 03-18-2013, 04:29 PM
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No codes. I replaced the MAP sensor but no difference.

Where is the EBP sensor located?
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Old 03-18-2013, 04:36 PM
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High boost

It's by the rear of the driver side valve cover. It's a tube that goes from where the egr cooler bolts up near the firewall


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Old 03-18-2013, 04:37 PM
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Alright, I will get in there tomorrow and check it out. Thanks!
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Old 03-18-2013, 04:44 PM
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The EPB sensor is located at the top of a 1/4" stainless steel tube on the drivers side of the engine, somewhat near the back of the engine. The stainless tube has a female flare fitting on both ends. The bottom of this tube is attached to the exhaust pipe that feeds into the horizontal EGR cooler, and it runs up about a foot to where the sensor is, and the tube has an attached bracket that's bolted to the engine near the top of the tube. The sensor has a 2 wire plug on it. It's really easy to get to the sensor, and it's not difficult to remove the tube completely so you can examine or clean it.

I'd include a photo, but I removed that exhaust pipe months ago and relocated the sensor. I probably still have the stainless tube around somewhere though.
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Old 03-18-2013, 05:51 PM
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Quote:
Originally Posted by ryano2121 View Post
I have a 6.4 with the DPF deleted with the DPF-R stacked with Banks 6 Gun and IQ.

A few months ago the boost was up in the 30's under 25% throttle not towing. I cleaned both sensors and it went back to normal.

I was towing a 10,000# fifth wheel the other day and the boost was getting right up to 40 any time I went up even a little hill. I have towed this thing all over and never had the boost that high.

When driving normally again, boost is up in the 30's all the way up to 40 under 25% throttle not towing.

Do I need to replace the sensor(s)?
Did you do an update recently? The new update has much higher boost levels.
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Old 03-18-2013, 05:56 PM
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I updated the Banks tuner and IQ. Is that the update you are talking about?
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Old 03-18-2013, 05:57 PM
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Quote:
Originally Posted by ryano2121 View Post
I updated the Banks tuner and IQ. Is that the update you are talking about?
Sorry, totally missed the fact you have a Banks. Was talking about H+S
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Old 03-18-2013, 05:59 PM
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Yeah, I can't imagine Banks would increase boost that much. I know, I know, H&S is better But I blew up my 6.0 when I over did it and I don't want to do it again, so I went mild.

30-40 just seems so high with 25% throttle
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