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10-31-2016
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#21 | |
 
Join Date: Dec 2003
Location: Chicagoland,IL
Posts: 2,679
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Re: Coil Problem
Quote:
Also back in the hey day they had a problem with the lower spades on the coils being too loose. 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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10-31-2016
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#22 | |
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Join Date: Jan 2004
Location: Portland, OR
Posts: 1,057
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Re: Coil Problem
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Robert ZR-1 Net Registry Oregon State Director 91 ZR-1 #431 Black/Black LPE 368 |
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10-31-2016
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#23 | |
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Join Date: Jan 2004
Location: Portland, OR
Posts: 1,057
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Re: Coil Problem
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Robert ZR-1 Net Registry Oregon State Director 91 ZR-1 #431 Black/Black LPE 368 |
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10-31-2016
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#24 | |
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Join Date: Dec 2003
Location: Chicagoland,IL
Posts: 2,679
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Re: Coil Problem
Quote:
Like a bad coil. See if u can stick something small and sharp like a dental tool to tighten up the spade in the coil. 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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10-31-2016
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#25 |
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Join Date: Jan 2004
Location: Portland, OR
Posts: 1,057
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Re: Coil Problem
You know now that I think about it I seem to recall someone adding material to the coil spades for a tighter fit.... does that sound familiar?
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Robert ZR-1 Net Registry Oregon State Director 91 ZR-1 #431 Black/Black LPE 368 |
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10-31-2016
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#26 | |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,708
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Re: Coil Problem
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[SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX |
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11-01-2016
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#27 | |
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Join Date: Jan 2004
Location: Portland, OR
Posts: 1,057
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Re: Coil Problem
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Robert ZR-1 Net Registry Oregon State Director 91 ZR-1 #431 Black/Black LPE 368 |
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11-02-2016
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#28 |
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Join Date: Jan 2004
Location: Portland, OR
Posts: 1,057
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Re: Coil Problem
So I decided to do some testing on the fuel side:
Doing the FSM chart A7 fuel pressure test with FP2 removed resulted in 45psi - about 4psi below the minimum okay range for the test. I also used the fuel pump test circuit with a multimeter, I saw just over 4 amps draw on each pump and about 8.5 amps with both pumps running. Activating each pump through the fuel pump test circuit and checking fuel pressure I got the following: FP1 fuse removed resulted in 51psi FP2 fuse removed resulted in 42psi Shouldn't both pumps be the same PSI when activated individually through the fuel pump test circuit?
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Robert ZR-1 Net Registry Oregon State Director 91 ZR-1 #431 Black/Black LPE 368 |
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11-02-2016
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#29 | |
   
Join Date: May 2007
Location: Peoria, AZ
Posts: 9,155
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Re: Coil Problem
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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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11-02-2016
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#30 |
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Join Date: Jan 2004
Location: Portland, OR
Posts: 1,057
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Re: Coil Problem
Just did some more testing:
MAP checked out okay Fuel pressure at idle is 42psi Right Block Learn at 128 Left Block Learn at 144 - indicating fuel is being added
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Robert ZR-1 Net Registry Oregon State Director 91 ZR-1 #431 Black/Black LPE 368 |
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Linear Mode
