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05-17-2009
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#1 |
 
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,180
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Fans come on with key in "on" position
My fans are coming on with the key in the on position but not started...kind of like when you run a diagnositic on a car.
Bad relay?
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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05-17-2009
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#2 |
 
Join Date: Dec 2003
Location: Chicagoland,IL
Posts: 2,667
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Re: Fans come on with key in "on" position
Is the chip in correctly.
Grounded relays. Pete
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'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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05-17-2009
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#3 | |
 
Join Date: May 2007
Location: Peoria, AZ
Posts: 9,119
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Re: Fans come on with key in "on" position
Quote:
I agree if the PROM inserted wrong the fans will come on immediately
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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 |
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05-17-2009
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#4 |
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Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,180
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Re: Fans come on with key in "on" position
System reset itself..no more issues
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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05-17-2009
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#5 | |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,686
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Re: Fans come on with key in "on" position
Quote:
If the check sum has been disabled, fans will come on. |
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05-17-2009
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#6 |
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Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,180
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Re: Fans come on with key in "on" position
Relays are fine, swapped with the 90...this is the 92......took it for a drive....damn, now I remember why an 1800rpm lanch is needed!
Fans are still coming on though
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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05-17-2009
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#7 | |
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Join Date: Aug 2005
Location: Fishers, IN
Posts: 812
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Re: Fans come on with key in "on" position
Quote:
 say what?Usually if the fans are running and the idle is high, you've got a PROM error. I think a code 51, or something. A bad burn, or wrong checksum will cause this, or the prom not seated properly. Is the check engine light on, or "sys" displayed in odometer window? Todd |
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