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10-06-2011
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#1 |
 
Join Date: May 2007
Location: Westminster, Maryland
Posts: 3,684
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Throttle Position Setting
I am working on a performance issue and while testing, I used the Tech 1 to monitor throttle position.
With the accelerator fully depressed to the floor, the Tech 1 shows Throttle Position is 84% and TPS signal is 3.7 volts. This is a late model ZR-1 with ASR. Is there a procedure to set or adjust the accelerator cable to the ASR or to adjust the Throttle cable to get 100% throttle opening. Thanks for any suggestions. Jim |
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10-06-2011
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#2 |
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Join Date: May 2007
Location: Westminster, Maryland
Posts: 3,684
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Re: Throttle Position Setting
I think that I found the procedure. Trying it now.
Please standby.... Jim |
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10-06-2011
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#3 |
 
Join Date: May 2007
Location: Peoria, AZ
Posts: 9,120
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Re: Throttle Position Setting
Is this not adjusted at the PROM level?
I know Dom plays with the BIN value tables for different throttle positions
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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 Last edited by GOLDCYLON; 10-06-2011 at 06:40 PM. |
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10-06-2011
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#4 |
Join Date: Oct 2004
Location: Folsom CA
Posts: 1,657
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Re: Throttle Position Setting
Didn't our friend "Sammy" have some kind of issue with one of his ZR1's last year and found some way to adjust the ASR cable?
I'll have to go searching, but I remember something along those lines. TomC 'Crabs Found it!!! http://www.zr1.net/forum/showthread.php?t=13859 Once in a while a neuron or two fire at the same time and my brane actually pulls one out of it's butt!! Last edited by tccrab; 10-06-2011 at 06:59 PM. |
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10-06-2011
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#5 |
 
Join Date: Jan 2006
Location: Niceville
Posts: 1,000
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Re: Throttle Position Setting
Standing by. But it is a physical adjustment of a fully functional TPS. There are orbital screw holes in the TPS.
Ted |
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10-06-2011
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#6 |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,683
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Re: Throttle Position Setting
Jim,
You need to adjust the throttle cable. At WOT, the TPS volts should be some where around 4.7v. I was having similar issue although it turned out to be the cable not fully seated in the throttle cam. |
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10-07-2011
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#7 |
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Join Date: May 2007
Location: Westminster, Maryland
Posts: 3,684
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Re: Throttle Position Setting
I successfully completed a mechanical adjustment of the Accelerator and Cruise Control Cables.
The instructions are in the ABS/ASR System Chapter (page 5E2-137 in 1994) of the FSM. This picture shows the adjustment mechanism:  The procedure has 11 steps and there are two different versions (early and late 1994) but basically there is a release button or tab that allows the cable sheaths to be pulled "apart", lengthing the total. Then the accelerator is pushed to the floor and the cable sheath automatically repositions to the correct length. After doing the procedure, the Tech 1 shows the throttle operating properly from 0% to 100%. I highly recommend checking for full throttle operation on all LT5's. I haven't looked at the 1990 FSM to see if there is a similar procedure for non-ASR cars. I will check tomorrow. Jim Last edited by QB93Z; 10-07-2011 at 12:34 AM. |
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10-07-2011
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#8 |
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Join Date: Jun 2010
Location: Lone Pine, CA
Posts: 580
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Re: Throttle Position Setting
you might want to ck the throttle cable end is squarely in its place . mine got kinda kinked somehow and caused the low percentage around 80% .it shouldnt be off that far normally unless something like the above has happened . you have a pm
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10-07-2011
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#9 | |
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Join Date: Aug 2006
Location: McLean, VA
Posts: 3,717
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Re: Throttle Position Setting
Quote:
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10-07-2011
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#10 | |
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Join Date: May 2007
Location: Westminster, Maryland
Posts: 3,684
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Re: Throttle Position Setting
Quote:
This will be a standard feature at all WAZOO WMD's. Jim |
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Linear Mode
