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#1
11-17-2005, 09:37 AM
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Bad Coil??? # 12 Fuse Popping! Help!!!
All the sudden my car quit and i found its blew the #12 fuse, which is, ignition coil, ECU, Power Transistor, and MFI relay. I have a AFC and a boost controller which i have not had any eletrical problems in 6 months. My coil has 190,000 miles on it. It seems to misfire with even the right pulg gap. ONLY AT OVER 5K RPM, WHEN IN BOOST. Do you think the coil is bad and thats why the fuse pops instantly when you replace it?? I think the coil has finally quit and thats why its poping. Thanks Will O'Hara
I have heard its possible that you can get cross spark between wires that will cause that. I have ACCEL wires do you think the wires are junk?
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92 Stealth R/T TT CURRENT MODS: K&N FIPK Spec Stage 3 Clutch 6 Puck HKS Turbo Timer Type-1 3 Inch Polished Y-Pipe Greddy Profec B Spec II @ 12.0psi Greddy Type S BOV Greddy Catch Can Borla Exhaust 3 Inch SS Down Pipe with Race Pipe 3SX Crank Pulley Accel 8.0mm Wires Gen 3 Lifters High Flow 290lph Fuel Pump (Supra Pump) Plugs Gapped at .030 Iridium IK20's 550cc RC Engineering Apexi S-AFC II (WILL BE REMOVED NOT YET) 2 G-16 Turbos AEM EMS FUTURE MODS: Custom FMIC 
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#2
11-17-2005, 12:05 PM
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Re: Bad Coil??? # 12 Fuse Popping! Help!!!
A blown fuse just means something is shorting to ground before the load. Coils are possible, test them. Since it's only when it's at high RPM, I would think it would have something to spark. I don't know the '93 ignition system, but things to check (if they're there): plugs, wires, distributor cap/rotor, igniter, coils...and not in that order.
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1997 Mitsubishi 3000GT VR4 - 269AWHP/290AWTQ (Mustang Dyno) - [email protected] - 1.756 60ft. - [email protected] (Best TDO4-9B Time) - Driver Mod - IPS TD04-19TL - SPEC 4+ - Wiseco Pistons - 3SX Custom Forged Rods - PMP FMIC + Much More. 
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#3
11-17-2005, 02:57 PM
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thanks
__________________
92 Stealth R/T TT CURRENT MODS: K&N FIPK Spec Stage 3 Clutch 6 Puck HKS Turbo Timer Type-1 3 Inch Polished Y-Pipe Greddy Profec B Spec II @ 12.0psi Greddy Type S BOV Greddy Catch Can Borla Exhaust 3 Inch SS Down Pipe with Race Pipe 3SX Crank Pulley Accel 8.0mm Wires Gen 3 Lifters High Flow 290lph Fuel Pump (Supra Pump) Plugs Gapped at .030 Iridium IK20's 550cc RC Engineering Apexi S-AFC II (WILL BE REMOVED NOT YET) 2 G-16 Turbos AEM EMS FUTURE MODS: Custom FMIC
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#4
11-18-2005, 01:38 PM
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Re: Bad Coil??? # 12 Fuse Popping! Help!!!
Just a few thoughts.
a) do you have a datalogger, because I'm just curious if you are monitoring for knock, based on your mod list. b) back on topic, what makes you think .36 is the correct plug gap for 16.5psi. I'd take it down to .32 and possibly even .28 You maybe getting spark blowout. c) are you getting a check engine light with the misfire?
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96 3000gt vr4 -K&N FIPK -Proboost mbc -Cusco front + rear strut bars -Greddy type-s -ATR downpipe -no cats -15Gs, 3sx aluminum pulley, FMIC, SAFC, walboro pump, EVO 560ccs, and Meth Injection Kit all waiting to go in shortly. Your 1996 Mitsubishi 3000GT VR-4 is the 92nd out of the 315 that were made that year. Only 21 of which are exactly identical.
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#5
11-19-2005, 10:25 AM
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I dont have a data logger but the AFC II has a Knock Sensor and i have not been getting any knock the afc was dyno tuned with a wideband 02 at 15 psi and i was running 11 on the new turbos. The plugs are at .30 i think they are IK20's which is to hot of a plug i need IK24's Or 27's would a bad plug cause it. NO check engine light is on.
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92 Stealth R/T TT CURRENT MODS: K&N FIPK Spec Stage 3 Clutch 6 Puck HKS Turbo Timer Type-1 3 Inch Polished Y-Pipe Greddy Profec B Spec II @ 12.0psi Greddy Type S BOV Greddy Catch Can Borla Exhaust 3 Inch SS Down Pipe with Race Pipe 3SX Crank Pulley Accel 8.0mm Wires Gen 3 Lifters High Flow 290lph Fuel Pump (Supra Pump) Plugs Gapped at .030 Iridium IK20's 550cc RC Engineering Apexi S-AFC II (WILL BE REMOVED NOT YET) 2 G-16 Turbos AEM EMS FUTURE MODS: Custom FMIC
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#6
11-29-2005, 01:00 PM
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Re: Bad Coil??? # 12 Fuse Popping! Help!!!
I dont have a data logger but the AFC II has a Knock Sensor and i have not been getting any knock the afc was dyno tuned with a wideband 02 at 15 psi and i was running 11 on the new turbos. The plugs are at .30 i think they are IK20's which is to hot of a plug i need IK24's Or 27's??? Could a bag plug cause this? Possibly that the plug is to hot of a plug. FOr the engine mods? THE check engine light is NOT on.
__________________
92 Stealth R/T TT CURRENT MODS: K&N FIPK Spec Stage 3 Clutch 6 Puck HKS Turbo Timer Type-1 3 Inch Polished Y-Pipe Greddy Profec B Spec II @ 12.0psi Greddy Type S BOV Greddy Catch Can Borla Exhaust 3 Inch SS Down Pipe with Race Pipe 3SX Crank Pulley Accel 8.0mm Wires Gen 3 Lifters High Flow 290lph Fuel Pump (Supra Pump) Plugs Gapped at .030 Iridium IK20's 550cc RC Engineering Apexi S-AFC II (WILL BE REMOVED NOT YET) 2 G-16 Turbos AEM EMS FUTURE MODS: Custom FMIC
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