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Join Date: Jul 2009
Location: Ontario
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car left me stranded

Hello all; My 87 has worked fine since I have owned it. Last night while out on tour, it started backfiring, motor stalling/restarting, then died and would not start. Went home and got a flashlight/returned 1/2 hour later and it fired up. drove home 15 miles, worked great. I'm thinking ignition. ??? Any clues since it is running fine now? thanks Philip
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87 930 GHL/Rarlyl8 dual/Garretson/GT3582R/1 Bar/Wevo shift, mounts/Meth inj/LC-1/Custom Fuchs/Carrera intake manifold/Xtreme Carrera heads P&P/3.4/DR 993SS cams/ Mahl/Pauter/JE/Niresist/ARP/twin plug coil packs/8.25:1/KEP stage 2/twin tials/close 2,3,4th. MS3Pro Evo install in progress. 500+ HP, BTSOMP Dyno
Old 05-28-2010, 07:51 PM
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OFF THE BOOST PIPE NOW...
 
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Look at the top of the forum for a STICKY on this subject. Oh Wait, we don't have one! GRRRR

You need to check all the basics: plugs, wires, cap, rotor, fuel pump fuse, fuel pump relays (can you hear them when the key is in the run position?), yellow overboost relay, delayed cutoff relay, CDI (can you hear a whine when the key is in the run position?)...
Old 05-29-2010, 06:20 AM
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Quote:
Originally Posted by A930Rocket View Post
Look at the top of the forum for a STICKY on this subject. Oh Wait, we don't have one! GRRRR

You need to check all the basics: plugs, wires, cap, rotor, fuel pump fuse, fuel pump relays (can you hear them when the key is in the run position?), yellow overboost relay, delayed cutoff relay, CDI (can you hear a whine when the key is in the run position?)...
We're gonna have to change your name to StickyRocket! But you're right, we do need a repository for this common topic.

Philip, start her up in the driveway and begin methodically tugging on all wires to see if you can find what shuts her down. Pretty crude starting point, I know, but you might be surprised. Wiggle the yellow relay, pull on the overboost pressure switch wire, wiggle the harness that goes under the fuse/relay tray, check the coil to distributor wire and the wires to the coil, tug on the connector to the CDI, check the connection to the control arm micro switch, and the same on the speed relay under the seat. You've either got fuel pumps or ignition sporadically shutting down.

My thought is it's ignition because you mentioned backfiring. If fuel related, it would just die and then start back up most likely without a backfire.
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Mark H. 1987 930, GP White, Wevo shifter, Borla exhaust, stock everything else. The result of a massive Pelicanite good will fire recovery effort. Truely an open book, ready for the slippery slopes to modification.

Last edited by mark houghton; 05-29-2010 at 06:42 AM..
Old 05-29-2010, 06:30 AM
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backfire

Thanks Mark; I also think its ignition, as it backfired many times in a short time/ maybe 10-15 sec. I have read lots on this search engine which will give me a good background to pinpoint the issue. Fuel pumps and relay all seem to good, have equipted myself with a jumper, just in case. Also I have purchased a MSD ignition which I will be installing in the near future, Its just a time thing. Philip
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87 930 GHL/Rarlyl8 dual/Garretson/GT3582R/1 Bar/Wevo shift, mounts/Meth inj/LC-1/Custom Fuchs/Carrera intake manifold/Xtreme Carrera heads P&P/3.4/DR 993SS cams/ Mahl/Pauter/JE/Niresist/ARP/twin plug coil packs/8.25:1/KEP stage 2/twin tials/close 2,3,4th. MS3Pro Evo install in progress. 500+ HP, BTSOMP Dyno
Old 05-29-2010, 08:24 AM
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89 930.
 
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Sorta sounds like what happened to me.
My CD box went bad. Putting in a MSD on monday.
Old 05-29-2010, 12:54 PM
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Msd

Hello Benny; You gotta let me know how the install was. What am I up against? thanks Philip
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87 930 GHL/Rarlyl8 dual/Garretson/GT3582R/1 Bar/Wevo shift, mounts/Meth inj/LC-1/Custom Fuchs/Carrera intake manifold/Xtreme Carrera heads P&P/3.4/DR 993SS cams/ Mahl/Pauter/JE/Niresist/ARP/twin plug coil packs/8.25:1/KEP stage 2/twin tials/close 2,3,4th. MS3Pro Evo install in progress. 500+ HP, BTSOMP Dyno
Old 05-29-2010, 01:51 PM
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89 930.
 
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Quote:
Originally Posted by philip j View Post
Hello Benny; You gotta let me know how the install was. What am I up against? thanks Philip

I was told it was approx. a 4hr job. Including mounting. I will let you know.
Old 05-29-2010, 04:21 PM
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I had a similar problem, it was the CDI box. Installed an MSD and fixed the problem.
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'86 930: 3.4 Andial build, Web GT2 Evo cams, Carrillo rods, ported/polished heads, MSD 6530, B&B headers/exh + intercooler, K27HF, 1 bar spring, Tial wastegate, Andial FE, Lindsey Fuchs. Back in black!!!
Past:997S cab; '88 930; '86 951; C5 Vette; 4th Gen Z28; 3rd Gen Trans Am GTA; '71 Z28
Old 05-29-2010, 05:27 PM
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83 911 Production Cab #10
 
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Porsche Crest Any Chance that...

... it would be related to the fuel leak?
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Old 05-29-2010, 05:29 PM
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Jj

Different car JJ
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87 930 GHL/Rarlyl8 dual/Garretson/GT3582R/1 Bar/Wevo shift, mounts/Meth inj/LC-1/Custom Fuchs/Carrera intake manifold/Xtreme Carrera heads P&P/3.4/DR 993SS cams/ Mahl/Pauter/JE/Niresist/ARP/twin plug coil packs/8.25:1/KEP stage 2/twin tials/close 2,3,4th. MS3Pro Evo install in progress. 500+ HP, BTSOMP Dyno
Old 05-30-2010, 04:09 AM
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83 911 Production Cab #10
 
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Just Notice...

... that it was on the "Turbo" thread.

Check this; Sunset Series
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83 911 Production Cab #10, Slightly Modified: Unslanted, 3.2, PMO EFI, TECgt, CE 911 CAM Sync / Pulley / Wires, SSI, Dansk Sport 2/2, 17" Euromeister, CKO GT3 Seats, Going SOK Super Charger
Old 05-30-2010, 04:18 AM
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