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12-30-2009
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#71 | |
 
Join Date: Nov 2007
Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri
Posts: 6,466
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Re: Removing Secondary Vacuum System questions.
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 . So...it shouldn't be a biggie to bypass the control and activate the secondaries or "latch" the secondary system to always be on. It will (in the case of Marc's chip) require a modification (by him) to accommodate the second injector being on at idle (Marc's chip runs only one injector at idle). P. |
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05-06-2010
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#72 |
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Join Date: Mar 2009
Location: Orlando, FL
Posts: 1,816
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Re: Removing Secondary Vacuum System questions.
When the secondaries are removed, does the purge solenoid (the one with the red connector) need to remain under the plenum, or can it be removed with the other solenoids?
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02-04-2012
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#73 |
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Join Date: Oct 2011
Location: STAFFORD VA,
Posts: 576
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Re: Removing Secondary Vacuum System questions.
How much is the chip required for the secondary change???
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02-05-2012
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#74 | |
 
Join Date: Dec 2003
Location: Chicagoland,IL
Posts: 2,667
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Re: Removing Secondary Vacuum System questions.
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No,does not need to remain. or Yes,it can be removed. Pete
__________________
'91 #1635 PoloGreen 350 LT5 11.09 @ 129.27 11.04 @ 128.86 474RWHP 400RWTQ http://www.youtube.com/watch?v=SFNFOhGGlR4 http://www.youtube.com/watch?v=ZlRIOMwaDYY https://sites.google.com/site/peteszr1garage |
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02-06-2012
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#75 | |
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Join Date: Mar 2009
Location: Orlando, FL
Posts: 1,816
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Re: Removing Secondary Vacuum System questions.
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02-06-2012
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#76 |
 
Join Date: May 2007
Location: Peoria, AZ
Posts: 9,117
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Re: Removing Secondary Vacuum System questions.
On the 91 what exactly can be removed? The spide,r the purge solenoid obvisouly the vaccum secondary actuators. Does the 91 require the underside ecm plug?
__________________
GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director  91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V |
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02-06-2012
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#77 |
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Join Date: Mar 2009
Location: Orlando, FL
Posts: 1,816
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Re: Removing Secondary Vacuum System questions.
I am still running the purge solenoid, since I don't like a car that smells like gas on a hot day... But if you wish to remove it I don't think the ECM will care.
The sensor under the ECM just has its vacuum line unplugged/removed, the electrical connection remains. Under the plenum, the vac storage canister, the secondary solenoid, and of course all the secondary hardware, is all removed. Vacuum pump is also removed. |
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01-18-2013
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#78 |
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Join Date: Jun 2010
Location: Lone Pine, CA
Posts: 580
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Re: Removing Secondary Vacuum System questions.
corey did mine different . i have a rubber vac line from map sensor under the ecm to my vac pump . said they did thid on the bonniville car so the secondaries didnt shut down on the long bonniville runs .4 miles in think
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01-19-2013
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#79 |
 
Join Date: Dec 2012
Location: Chester, Virginia
Posts: 457
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Re: Removing Secondary Vacuum System questions.
Does an emissions chip retard the timing substantially?
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01-19-2013
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#80 | |
Join Date: Jun 2005
Location: pittsburgh
Posts: 4,624
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Re: Removing Secondary Vacuum System questions.
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It's not the car, it's the people - Doug Johnson 90 r/r "KEYS ON" nick named "T.L.B" |
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Linear Mode
