Trying to help a friend - ZR-1 Net Registry Forums

yzpilot · 10-22-2013

Hey guys. Trying to help out a buddy, and dare I ask a question about a non-Z?? Don't kill me guys. I have a friend on base here that has a beautiful 95 LT1 coupe. He said he has no problems with the car at all until recently. He was driving back from San Diego to the Marine Corps base here and the motor just died. All electical power was still there, and it cranked fine, just the dreaded no start. He came back a few hours later with a trailer, and low and behold it fired right up. Drove it for a bout 10 miles, and same thing. I am thinking a sensor somewhere?? Getting hot and failing? Just want to try and help him out before he starts throwing money at the wrong problems! He said he checked all the grounds according to the manual, and the optispark was replaced about 6 months ago. Any help would be appreciated guys. As I know there are more than a few of you that have a couple non-Z's in your stable as well. Also construction has been started on my paint booth, so I'm excited to get started on doing resto's! First victim will be my Z....many photos to come! It's overdue time to reverse the results of a barn....3 years....a bunch of cats...and a careless Z owner!!!!

mike100 · 10-22-2013

A paint booth? I have a fiberglass trailer that is in bad need of painting Ha!

I was going to say Opti-Spark, but since that probably isn't it, I will suggest he look into intermittent VATS functionality. (the theft deterrent chip in the ign key).

ZR-1nce removed · 10-22-2013

If he used an aftermarket optispark, I would bet that's it, I went through 3 in my LT-1 before giving up and buying the AC delco one. Good Luck

LGAFF · 10-22-2013

Get the manual out, check the ignition module on the PS head

GOLDCYLON · 10-22-2013

Yep im think OPTI as well.

yzpilot · 10-22-2013

Hey Mike! I was thinking that as well. If I remember right...isn't there a way to bypass that? And yes, converting the garage into my paint booth. I painted for years, mind as well get back into it. So if you need a trailer done...no problem! My phone was crushed last week and I am waiting on sprints super fast service of getting my replacement! But I am definitely still interested in the amps if you still have them. The Z should be back on the road in about 3 weeks! I can't wait!

yzpilot · 10-22-2013

Thanks guys. I need to find out if the opti spk was aftermarket or OEM.

mike100 · 10-22-2013

BTW, I still have my factory service manuals from when I had my 95 LT1 if you need to look something up. Didn't seem worth selling them off just to get $60.

Franke · 10-22-2013

If it fails again, can he check for spark at plug wire? Sounds heat related to Opti-spark.

yzpilot · 10-22-2013

Thanks Franke. Thats exactly what I was thinking to do.

10-22-2013	#1
yzpilot Join Date: Jul 2013 Location: Oceanside, California Posts: 66	Trying to help a friend Hey guys. Trying to help out a buddy, and dare I ask a question about a non-Z?? Don't kill me guys. I have a friend on base here that has a beautiful 95 LT1 coupe. He said he has no problems with the car at all until recently. He was driving back from San Diego to the Marine Corps base here and the motor just died. All electical power was still there, and it cranked fine, just the dreaded no start. He came back a few hours later with a trailer, and low and behold it fired right up. Drove it for a bout 10 miles, and same thing. I am thinking a sensor somewhere?? Getting hot and failing? Just want to try and help him out before he starts throwing money at the wrong problems! He said he checked all the grounds according to the manual, and the optispark was replaced about 6 months ago. Any help would be appreciated guys. As I know there are more than a few of you that have a couple non-Z's in your stable as well. Also construction has been started on my paint booth, so I'm excited to get started on doing resto's! First victim will be my Z....many photos to come! It's overdue time to reverse the results of a barn....3 years....a bunch of cats...and a careless Z owner!!!! __________________ Erik ________________________ 1991 #422 Blk/Blk

10-22-2013	#2
mike100 Join Date: Feb 2011 Location: San Marcos CA Posts: 1,802	Re: Trying to help a friend A paint booth? I have a fiberglass trailer that is in bad need of painting Ha! I was going to say Opti-Spark, but since that probably isn't it, I will suggest he look into intermittent VATS functionality. (the theft deterrent chip in the ign key).

10-22-2013	#3
ZR-1nce removed Join Date: Jan 2009 Location: Gettysburg, PA Posts: 247	Re: Trying to help a friend If he used an aftermarket optispark, I would bet that's it, I went through 3 in my LT-1 before giving up and buying the AC delco one. Good Luck __________________ 90 ZR-1 #0951 Bright Red (sold) 06 Z51 MN6 Velocity Yellow (sold) 2023 C-8 Z51 ELB WAZOO Member

10-22-2013	#4
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,194	Re: Trying to help a friend Get the manual out, check the ignition module on the PS head __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

10-22-2013	#5
GOLDCYLON Join Date: May 2007 Location: Peoria, AZ Posts: 9,155	Re: Trying to help a friend Yep im think OPTI as well. __________________ 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

10-22-2013	#6
yzpilot Join Date: Jul 2013 Location: Oceanside, California Posts: 66	Re: Trying to help a friend Hey Mike! I was thinking that as well. If I remember right...isn't there a way to bypass that? And yes, converting the garage into my paint booth. I painted for years, mind as well get back into it. So if you need a trailer done...no problem! My phone was crushed last week and I am waiting on sprints super fast service of getting my replacement! But I am definitely still interested in the amps if you still have them. The Z should be back on the road in about 3 weeks! I can't wait! __________________ Erik ________________________ 1991 #422 Blk/Blk

10-22-2013	#7
yzpilot Join Date: Jul 2013 Location: Oceanside, California Posts: 66	Re: Trying to help a friend Thanks guys. I need to find out if the opti spk was aftermarket or OEM. __________________ Erik ________________________ 1991 #422 Blk/Blk

10-22-2013	#8
mike100 Join Date: Feb 2011 Location: San Marcos CA Posts: 1,802	Re: Trying to help a friend BTW, I still have my factory service manuals from when I had my 95 LT1 if you need to look something up. Didn't seem worth selling them off just to get $60.

10-22-2013	#9
Franke Join Date: May 2013 Location: Beaver, PA Posts: 516	Re: Trying to help a friend If it fails again, can he check for spark at plug wire? Sounds heat related to Opti-spark.