EBC reads way to much boost - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

89_SR20 · 01-01-2013, 05:02 PM

So I recently installed a Greddy Profec B II boost controller in my car. While trying to set it up I had it set to make factory boost Which is 7Psi. My boost gauge reads 7 pounds at WOT but the boost controller reads a warning of 37. Any help would be appreciated. Its a Redtop with Factory SMIC

Lines run as Follows. (Throttle Body)
Top left FPR Tee'd for the Boost Controller
Top right BOV
Bottom Boost Gauge.
Then line from actuator into COM port, NO line running to fitting on the cold pipe.

*fliprayzin240sx* · 01-01-2013, 07:17 PM

Double checked the reference line to make sure there's no kink?

Croustibat · 01-02-2013, 03:47 AM

Quote:

Originally Posted by 89_SR20

So I recently installed a Greddy Profec B II boost controller in my car. While trying to set it up I had it set to make factory boost Which is 7Psi. My boost gauge reads 7 pounds at WOT but the boost controller reads a warning of 37. Any help would be appreciated. Its a Redtop with Factory SMIC

Lines run as Follows. (Throttle Body)
Top left FPR Tee'd for the Boost Controller
Top right BOV
Bottom Boost Gauge.
Then line from actuator into COM port, NO line running to fitting on the cold pipe.

The only way to get factory boost is to turn the boost controler off. A boost controler can only get the boost UP, not down.

89_SR20 · 01-02-2013, 10:15 AM

Quote:

Originally Posted by Croustibat

The only way to get factory boost is to turn the boost controler off. A boost controler can only get the boost UP, not down.

Even with the Boost controller turned off it still lets me know what its reading and again way to high. I checked the line and it doesn't seemed kinked anywhere, could it be possible it is to small of a line? Its a 6mm until just after the fire wall then a 4mm hose running to the back of the controller

89_SR20 · 01-02-2013, 10:20 AM

Also I should add making adjustments to the Boost Controller doesn't seem to do anything. I did small tests but even still it doesn't seem to work.

cotbu · 01-02-2013, 06:13 PM

download a manual for your boost controller, if you already have a manual, then you have a comprehension problem.

The unit is set to read in kpa, the manual will show you how to change it to psi, but it's in x10 increments so 10psi would be 100.

Back to kpa, 37kpa would be roughly 5.4psi if you have a warning set for that low you won't be able to raise the boost but you should be seeing the actuator boost setting, 7psi so you probably have a boostleak somewhere.

get manual, boostleak test or verify your connections

*TheRealSy90* · 01-02-2013, 09:55 PM

Also, run your boost source for the wastegate off of the hotpipe, don't tee off of your FPR or to the throttle body. The wastegate isn't meant to see vacuum.

01-01-2013, 05:02 PM	#1
89_SR20 Join Date: Sep 2011 Location: Canada Posts: 28 Trader Rating: (0) Feedback Score: 0 reviews	EBC reads way to much boost So I recently installed a Greddy Profec B II boost controller in my car. While trying to set it up I had it set to make factory boost Which is 7Psi. My boost gauge reads 7 pounds at WOT but the boost controller reads a warning of 37. Any help would be appreciated. Its a Redtop with Factory SMIC Lines run as Follows. (Throttle Body) Top left FPR Tee'd for the Boost Controller Top right BOV Bottom Boost Gauge. Then line from actuator into COM port, NO line running to fitting on the cold pipe.

01-01-2013, 07:17 PM	#2
fliprayzin240sx Man w/ CTSV & a Car Seat Join Date: Aug 2002 Location: Tampa Posts: 17,998 Trader Rating: (19) Rides Gallery: fliprayzin240sx Feedback Score: 19 reviews	Double checked the reference line to make sure there's no kink? __________________ If you think Zilvia has too many assholes... CLICK HERE!!!

01-02-2013, 06:13 PM	#6
cotbu Post Whore! Join Date: Sep 2005 Location: SWFL Age: 47 Posts: 3,318 Trader Rating: (3) Feedback Score: 3 reviews	download a manual for your boost controller, if you already have a manual, then you have a comprehension problem. The unit is set to read in kpa, the manual will show you how to change it to psi, but it's in x10 increments so 10psi would be 100. Back to kpa, 37kpa would be roughly 5.4psi if you have a warning set for that low you won't be able to raise the boost but you should be seeing the actuator boost setting, 7psi so you probably have a boostleak somewhere. get manual, boostleak test or verify your connections __________________ LoverTechnologies "Half Broken Things!"

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01-02-2013, 10:20 AM	#5
89_SR20 Join Date: Sep 2011 Location: Canada Posts: 28 Trader Rating: (0) Feedback Score: 0 reviews	Also I should add making adjustments to the Boost Controller doesn't seem to do anything. I did small tests but even still it doesn't seem to work.