ECS boost gauge

Mudd46738 · 02-25-2014, 04:53 PM

I just installed the ECS boost gauge. I followed the instructions to a T. Now I am not sure if this is normal or not but it never gets above 0 ever. It sits at idle roughly at 20 vacuum. When I give it throttle it gets close to 0 or a little over. I have called ECS twice asking if this is normal or am I supposed to dial the gauge in or if it comes dialed in. I have checked all the tubes for bends and breaks but they all look fine. Is it possible I didn't hook it up to the correct tubes under the hood? I connected the gauge line to the main line after the T connecting the two diverter valves by the air intake. Has anyone had this problem before? Thank you for any help.

FL335 · 02-25-2014, 04:55 PM

There must be a leak or it's not connected properly bc it's not getting boost.

Transport3r · 02-25-2014, 05:05 PM

Have you driven it and put your foot down? It won't build boost by just revving the engine.

Mudd46738 · 02-25-2014, 05:09 PM

Yes. I have driven to the car wash and to get gas. I wasn't flooring it but it is consistently going up and back down. Maybe I should take it in for a boost check. It drives fine. Should it drive awful with no boost?

Transport3r · 02-25-2014, 05:15 PM

Quote:

Originally Posted by Mudd46738

Yes. I have driven to the car wash and to get gas. I wasn't flooring it but it is consistently going up and back down. Maybe I should take it in for a boost check. It drives fine. Should it drive awful with no boost?

It would, You would get an underboost code too.. That's really weird.. Where are you hooking the vacuum line up to? What did ECS say?

andydna15 · 02-25-2014, 05:17 PM

Quote:

Originally Posted by Mudd46738

I just installed the ECS boost gauge. I followed the instructions to a T. Now I am not sure if this is normal or not but it never gets above 0 ever. It sits at idle roughly at 20 vacuum. When I give it throttle it gets close to 0 or a little over. I have called ECS twice asking if this is normal or am I supposed to dial the gauge in or if it comes dialed in. I have checked all the tubes for bends and breaks but they all look fine. Is it possible I didn't hook it up to the correct tubes under the hood? I connected the gauge line to the main line after the T connecting the two diverter valves by the air intake. Has anyone had this problem before? Thank you for any help.

It should be fine mine sits at 20 when idle. If you rev it while parked it won't go to high. You need to drive it and build boost that way.
Edit can you post a pic of where you connected under the hood?

Mudd46738 · 02-25-2014, 05:23 PM

There are two Diverter valves with two tubes coming off and those two are Y'ed together. Then that's where I put my T after the factory Y. But mine should get above 0 on the boost side right? Or does it take time to make that much boost for the gauge to read it?

Mudd46738 · 02-25-2014, 05:30 PM

This is the factory Y and ECS T

andydna15 · 02-25-2014, 05:31 PM

Quote:

Originally Posted by Mudd46738

There are two Diverter valves with two tubes coming off and those two are Y'ed together. Then that's where I put my T after the factory Y. But mine should get above 0 on the boost side right? Or does it take time to make that much boost for the gauge to read it?

Yes it should go over zero. Did you put in the little clear filter provided? I think it's a moisture filter.

Edit-the lines look like you connect them correctly

Mudd46738 · 02-25-2014, 05:38 PM

Yeah. The moisture filter is in the dash. I thought that it might be kinked under the dash. I checked one of the lines and there is a lot of vacuum one that line.

andydna15 · 02-25-2014, 05:42 PM

I did not install it on mine, I'm not sure if its a 2 way or one way filter. Maybe
it needs to be flipped to the other side . Don't know if it makes sense? Or try bypassing the filter

Mudd46738 · 02-25-2014, 05:44 PM

Quote:

Originally Posted by andydna15

I did not install it on mine, I'm not sure if its a 2 way or one way filter. Maybe
it needs to be flipped to the other side . Don't know if it makes sense?

Maybe I'll take mine off. I think it catches moisture before it reaches the sender. I wonder if the diverters are bad. How would you know if the diverters were bad?

andydna15 · 02-25-2014, 05:46 PM

Try to take the that filter off first. Do you have a tune? Or are you at stock boost?

Mudd46738 · 02-25-2014, 05:47 PM

Quote:

Originally Posted by andydna15

Try to take the that filter off first. Do you have a tune? Or are you at stock boost?

Stock. I figured I would get at least 8. Lol

andydna15 · 02-25-2014, 05:50 PM

Quote:

Originally Posted by Mudd46738

Stock. I figured I would get at least 8. Lol

Have you stepped on it all the way? You will see around 8 if your at wot.

Mudd46738 · 02-25-2014, 05:52 PM

Quote:

Originally Posted by andydna15

Quote:

Originally Posted by Mudd46738

Stock. I figured I would get at least 8. Lol

Have you stepped on it all the way? You will see around 8 if your at wot.

Yeah. I will take it off tonight and check it tomorrow on the way to work.

C.Pop · 02-25-2014, 07:20 PM

Stand on the thing like you mean it and pay attention to the boost gauge; floor it and stay floored for a while. I have the same gauge, if youre reading ~-20hg at idle seems like it's at least accurate on that end. You could always pull the tube and actually blow on it to test, you should be able to get a couple of psi.

Mudd46738 · 02-26-2014, 05:10 PM

Quote:

Originally Posted by andydna15

Quote:

Originally Posted by Mudd46738

Stock. I figured I would get at least 8. Lol

Have you stepped on it all the way? You will see around 8 if your at wot.

I took off the filter and I have seen it go up to 5!! So maybe the filter is the problem or I just didn't give it enough gas to make it work.

Mudd46738 · 02-26-2014, 05:11 PM

Quote:

Originally Posted by C.Pop

Stand on the thing like you mean it and pay attention to the boost gauge; floor it and stay floored for a while. I have the same gauge, if youre reading ~-20hg at idle seems like it's at least accurate on that end. You could always pull the tube and actually blow on it to test, you should be able to get a couple of psi.

I did this morning. Can you explain why at idle I get 20 vacuum? Maybe I don't know how a turbo works.

SINGH_ · 02-26-2014, 05:26 PM

Quote:

Originally Posted by Mudd46738

I did this morning. Can you explain why at idle I get 20 vacuum? Maybe I don't know how a turbo works.

you don't make boost at idle/low rpms

Mudd46738 · 02-26-2014, 05:28 PM

Quote:

Originally Posted by E92 N54

Quote:

Originally Posted by Mudd46738

I did this morning. Can you explain why at idle I get 20 vacuum? Maybe I don't know how a turbo works.

you don't make boost at idle/low rpms

Shouldn't it read 0 then?

AlpineSwift · 02-26-2014, 05:40 PM

Quote:

Originally Posted by Mudd46738

Shouldn't it read 0 then?

The 20inhg is your vacuum pressure reading in inches of mercury. It should never read 0 unless it's installed incorrectly.

02-25-2014, 04:53 PM	#1
Mudd46738 Private 5 Rep 64 Posts Drives: 2007 335i Join Date: Nov 2012 Location: Fort Wayne IN. iTrader: (0)	ECS boost gauge I just installed the ECS boost gauge. I followed the instructions to a T. Now I am not sure if this is normal or not but it never gets above 0 ever. It sits at idle roughly at 20 vacuum. When I give it throttle it gets close to 0 or a little over. I have called ECS twice asking if this is normal or am I supposed to dial the gauge in or if it comes dialed in. I have checked all the tubes for bends and breaks but they all look fine. Is it possible I didn't hook it up to the correct tubes under the hood? I connected the gauge line to the main line after the T connecting the two diverter valves by the air intake. Has anyone had this problem before? Thank you for any help.
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02-25-2014, 04:55 PM	#2
FL335 Banned 85 Rep 707 Posts Drives: 2009 335i Join Date: Oct 2013 Location: Florida Beaches iTrader: (0)	There must be a leak or it's not connected properly bc it's not getting boost.
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02-25-2014, 05:05 PM	#3
Transport3r Major 86 Rep 1,262 Posts Drives: 2011 N55 E90 Join Date: Sep 2010 Location: Melbourne, FL iTrader: (4)	Have you driven it and put your foot down? It won't build boost by just revving the engine. __________________ Josh-
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02-25-2014, 05:09 PM	#4
Mudd46738 Private 5 Rep 64 Posts Drives: 2007 335i Join Date: Nov 2012 Location: Fort Wayne IN. iTrader: (0)	Yes. I have driven to the car wash and to get gas. I wasn't flooring it but it is consistently going up and back down. Maybe I should take it in for a boost check. It drives fine. Should it drive awful with no boost?
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02-25-2014, 05:23 PM	#7
Mudd46738 Private 5 Rep 64 Posts Drives: 2007 335i Join Date: Nov 2012 Location: Fort Wayne IN. iTrader: (0)	There are two Diverter valves with two tubes coming off and those two are Y'ed together. Then that's where I put my T after the factory Y. But mine should get above 0 on the boost side right? Or does it take time to make that much boost for the gauge to read it?
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02-25-2014, 05:30 PM	#8
Mudd46738 Private 5 Rep 64 Posts Drives: 2007 335i Join Date: Nov 2012 Location: Fort Wayne IN. iTrader: (0)	This is the factory Y and ECS T Attached Images
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02-25-2014, 05:38 PM	#10
Mudd46738 Private 5 Rep 64 Posts Drives: 2007 335i Join Date: Nov 2012 Location: Fort Wayne IN. iTrader: (0)	Yeah. The moisture filter is in the dash. I thought that it might be kinked under the dash. I checked one of the lines and there is a lot of vacuum one that line.
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02-25-2014, 05:42 PM	#11
andydna15 Second Lieutenant 55 Rep 254 Posts Drives: 335i Join Date: Feb 2012 Location: oc iTrader: (4)	I did not install it on mine, I'm not sure if its a 2 way or one way filter. Maybe it needs to be flipped to the other side . Don't know if it makes sense? Or try bypassing the filter
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02-25-2014, 05:46 PM	#13
andydna15 Second Lieutenant 55 Rep 254 Posts Drives: 335i Join Date: Feb 2012 Location: oc iTrader: (4)	Try to take the that filter off first. Do you have a tune? Or are you at stock boost?
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02-25-2014, 07:20 PM	#17
C.Pop First Lieutenant 65 Rep 385 Posts Drives: 335i Join Date: May 2013 Location: AZ iTrader: (0)	Stand on the thing like you mean it and pay attention to the boost gauge; floor it and stay floored for a while. I have the same gauge, if youre reading ~-20hg at idle seems like it's at least accurate on that end. You could always pull the tube and actually blow on it to test, you should be able to get a couple of psi.
	Appreciate 0 Quote