 boost gauge help, aem digital gauge |
 Mar 30, 2013 - 8:02 PM
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 Enthusiast  Joined Aug 12, '07 From Lancaster, Pa Currently Offline Reputation: 35 (100%)  |
i have a 2nd gen 3sgte swapped in a 1995 celica. i installed an aem digital boost gauge. i have the gauge grounded properly an the positive side is connected to the radio fuse. i tried tapping into to locations to get a vacuum reading. first the map sensor line and second on the timing belt side of the the engine, on the intake manifold. i get wrong readings in both cases. i check the aem pressure sensor and everything checks out fine. any suggestion, or wisdom is greatly appreciated.
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Mar 30, 2013 - 10:39 PM
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 Enthusiast Joined May 13, '06 From Kaimuki, HI Currently Offline Reputation: 10 (100%) |
QUOTE (garin @ Mar 30, 2013 - 3:02 PM)  i have a 2nd gen 3sgte swapped in a 1995 celica. i installed an aem digital boost gauge. i have the gauge grounded properly an the positive side is connected to the radio fuse. i tried tapping into to locations to get a vacuum reading. first the map sensor line and second on the timing belt side of the the engine, on the intake manifold. i get wrong readings in both cases. i check the aem pressure sensor and everything checks out fine. any suggestion, or wisdom is greatly appreciated. you shouldn't tap into the map sensor line. The map sensor needs a dedicated vacuum source to output the correct voltage to the ecu based off of the pressure. Most things that connect to vacuum will have a pressure sensing disk thing or shifting diaphragm that will change the vacuum/boost on the map sensor(or boost gauge), and thus change the voltage reading that the map sensor outputs based off the vacuum/boost. I'm not saying that this is the culprit for your incorrect readings on your boost gauge, but it does need a dedicated line to get the most accurate reading. This post has been edited by match220: Mar 30, 2013 - 10:49 PM -------------------- -Jay
95 GT conv. project car: Manual, Gen III 3sgte, JN pisons, Eagle rods, overbore, crank knife-edged, crank scraper, ARP head/main/flywheel, Autronic EMS, Haltech Dual Wideband O2 controller, Audi 1.8T individual coils, FMIC and SSQV BOV, 3" downpipe, 3" ultra-high-flow cat, 2.5" Borla muffler, +other 01 S2000: FMIC, Haltech EMS, Haltech wideband, 570cc inj, forged pistons/rods, sleeved block, 5 angle valve job, ported and polished 02 R6, all stock, except for braided stainless brake lines, frame sliders, and adjustable brake/clutch leve |
Posts in this topic
garin boost gauge help Mar 30, 2013 - 8:02 PM
Syaoran Use any nipple from the intake manifold. What do y... Mar 30, 2013 - 8:21 PM
garin it reads 22 psi at idle... not 22 inhg. im thinkin... Mar 30, 2013 - 8:24 PM Syaoran QUOTE (garin @ Mar 30, 2013 - 9:24 P... Mar 30, 2013 - 9:42 PM garin i suppose that is good advice. only got this one t... Mar 30, 2013 - 9:47 PM garin still no luck when the car is on, but not running ... Mar 30, 2013 - 10:35 PM garin yea i switched it to the other side of the intake ... Mar 30, 2013 - 10:49 PM match220 QUOTE (garin @ Mar 30, 2013 - 5:49 P... Mar 30, 2013 - 11:04 PM garin but would that cause the gauge to read 22psi at id... Mar 30, 2013 - 11:12 PM match220 QUOTE (garin @ Mar 30, 2013 - 6:12 P... Mar 30, 2013 - 11:24 PM garin there is no selector switch on the back.
i figure... Mar 31, 2013 - 8:10 AM match220 QUOTE (garin @ Mar 31, 2013 - 3:10 A... Mar 31, 2013 - 6:44 PM garin these gauges seem to be nice, but quirky at the sa... Apr 1, 2013 - 6:06 PM match220 QUOTE (garin @ Apr 1, 2013 - 1:06 PM... Apr 1, 2013 - 6:40 PM lagos QUOTE (garin @ Apr 1, 2013 - 7:06 PM... Apr 2, 2013 - 12:03 PM garin QUOTE (lagos @ Apr 2, 2013 - 1:03 PM... Apr 3, 2013 - 8:41 AM Smaay for future reference, almost all digital/electrica... Apr 3, 2013 - 9:00 AM garin i know. i powered it to to radio fuse... didn... Apr 3, 2013 - 9:27 AM chrismru Hello friends...Hey any1 can help me on an st205 s... Apr 15, 2013 - 3:04 AM 83841 im using AEM (psi) Boost gauge which works flawles... Apr 15, 2013 - 12:18 PM paul52 im about to buy an aem tru boost controller'? ... Aug 19, 2013 - 11:02 PM match220 QUOTE (paul52 @ Aug 19, 2013 - 6:02 ... Aug 19, 2013 - 11:35 PM lagos You really can't beat a basic manual boost con... Aug 20, 2013 - 8:52 AM |
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