Pelican Parts
Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   Pelican Parts Forums > Porsche Forums > 911 / 930 Turbo & Super Charging Forum


Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
Registered
 
gumba's Avatar
 
Join Date: Dec 2001
Posts: 4,313
aem boost gauge sensor location

I currently have the aem sensor mounted in the manifold, about half way between the throttle body and the left intake ports. Most of the time it doesn't read correctly, and occasionally it does. I took the analog gauge housing apart and mounted the gauge in a custom multi gauge housing. AEM hasn't been all that helpful. I did the tests and confirmed it's wired correctly. This is their analog gauge.
My question, is there a better place to mount the sensor than the manifold.

__________________
Harold
'79 930/DP935 (sold)
'68 VW 3.3 Turbo Crewcab
Old 11-12-2015, 05:24 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
Registered
 
proffighter's Avatar
 
Join Date: Aug 2007
Location: Switzerland
Posts: 2,383
Garage
Maybe a pic of your present set-up?
__________________
Roland

930 Turbo '81 Too many modifications to list
Old 11-13-2015, 03:32 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)
Registered
 
gumba's Avatar
 
Join Date: Dec 2001
Posts: 4,313
The aem sensor is yellow.
__________________
Harold
'79 930/DP935 (sold)
'68 VW 3.3 Turbo Crewcab
Old 11-13-2015, 05:07 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #3 (permalink)
Preferred pronoun:Maestro
 
Norm K's Avatar
 
Join Date: Sep 2012
Location: Group W Bench
Posts: 11,359
You can tee into the brake-booster line in the frunk. Good signal and makes for a very short and simple wiring run.
__________________
When in doubt, use overwhelming force.
Old 11-13-2015, 06:02 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #4 (permalink)
Registered
 
gumba's Avatar
 
Join Date: Dec 2001
Posts: 4,313
This is in a bus. I confirmed the gauge and wiring are fine according to the aem trouble shooting section. Since I didn't use their installation kit I'm wondering if taping directly into the manifold, or manifold location is the problem. I also may have damaged the gauge. AEM doesn't sell just the gauge, so I would have to buy the whole kit again. I'd like to rule out everything else before I do that.
__________________
Harold
'79 930/DP935 (sold)
'68 VW 3.3 Turbo Crewcab
Old 11-13-2015, 06:19 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #5 (permalink)
Preferred pronoun:Maestro
 
Norm K's Avatar
 
Join Date: Sep 2012
Location: Group W Bench
Posts: 11,359
I just pulled one of these from my 930 last night, in favor of one of AEM's FailSafe units. If yours turns out to be bad, contact me. If I haven't already sold it through the F/S section you can save a decent amount of money by picking up a proven used one (I've used it for about 2K miles) for much less than new.
__________________
When in doubt, use overwhelming force.
Old 11-13-2015, 06:40 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #6 (permalink)
 
Registered
 
gumba's Avatar
 
Join Date: Dec 2001
Posts: 4,313
pm me a price. It might be worth it to have an extra gauge.
thanks,
__________________
Harold
'79 930/DP935 (sold)
'68 VW 3.3 Turbo Crewcab
Old 11-13-2015, 06:53 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #7 (permalink)
Registered
 
lite75's Avatar
 
Join Date: Jan 2007
Location: Bellingham WA
Posts: 1,024
Garage
Test you sensor and gauge with regulated compressed air, if it holds nice and steady it's probably the location.
__________________
75 930, 76 930, 83 SC EFI turbo
Old 11-13-2015, 07:11 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #8 (permalink)
Registered
 
gumba's Avatar
 
Join Date: Dec 2001
Posts: 4,313
It's an electronic gauge.
__________________
Harold
'79 930/DP935 (sold)
'68 VW 3.3 Turbo Crewcab
Old 11-13-2015, 07:34 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #9 (permalink)
Registered
 
lite75's Avatar
 
Join Date: Jan 2007
Location: Bellingham WA
Posts: 1,024
Garage
Pull your sensor and use air pressure at the sensor opening with power to it and watch your gauge.
__________________
75 930, 76 930, 83 SC EFI turbo
Old 11-13-2015, 07:44 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #10 (permalink)
Preferred pronoun:Maestro
 
Norm K's Avatar
 
Join Date: Sep 2012
Location: Group W Bench
Posts: 11,359
Quote:
Originally Posted by gumba View Post
It's an electronic gauge.

Hate to cost myself a sale, Harold, but you should still be able to test it by applying metered air to the brass sensor/fitting. If it doesn't check out it could be either the gauge or the sensor. If, however, it passes the test you'll just need to identify a different mounting point.

Edit; I need to work on my typing skills, as the same suggestion was made mere moments before my post ...
__________________
When in doubt, use overwhelming force.

Last edited by Norm K; 11-13-2015 at 07:47 AM..
Old 11-13-2015, 07:44 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #11 (permalink)
Registered
 
gumba's Avatar
 
Join Date: Dec 2001
Posts: 4,313
The gauge reads inconsistently. A few times it reads correctly, then not. Sometimes it sets at 0 at idle, sometimes not. Yesterday instead of showing boost, it showed vacuum.
Norm, your set up will let me swap out stuff to check.
I don't see what there is to test on the sensor.

__________________
Harold
'79 930/DP935 (sold)
'68 VW 3.3 Turbo Crewcab
Old 11-13-2015, 09:58 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #12 (permalink)
 
Reply


 


All times are GMT -8. The time now is 07:31 AM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2025, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2025 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.