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#1
10-25-2007, 05:19 PM
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No Spark, need help quickish
ok, so i know theres been alot of threads on this topic lately but i need to figure this out. i am getting no spark, i know its not the plugs, coils or wires. what i need know is... what is the easiest way to tell wether its the PTU or the ECU or the CAS? im having alotta trouble diagnosing this one. it ran superbly last night, then when i go out to head to school this morning, no spark... kinda weird to happen all the sudden dont you think? any help would be greatly appreciated. Thanks in advance guys.
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'93 3000gt VR-4
170k, 27k on JDM motor MBC @ 14.5 psi Datalogger Intake T-Pros Downpipe Gutted Pre Cats Mods to come: Upgraded Fuel System and 75 shot of Nitrous, Full Exhaust and hopefully 15Gs Audio Sony Deck Eclipse 6x8 2 ways in the back Clarion Kevlar cone Component System in the front 2 Alpine Type S 10 inch DVc Subs 1 Audiobahn 10 inch DVC D Jones Series One 800 Watt Jensen amp and a soundstream 300 watt 4 ch to the speakers And still under 4000 lbs w/ me in the car  
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#2
10-25-2007, 05:50 PM
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Re: No Spark, need help quickish
if you had a Service Manual then you could easily test the PTU with a multimeter/voltmeter. i highly suggest you get a service manual. you can find them on ebay for about $20. be sure to get the SERVICE manual, not the owner's manual (which is useless).
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93 3000GT base K&N | long tube headers | 3sx crank pulley| testpipe | Addco front/rear sway bars (3SX) | rear strut bar & front 3-point strut bar (by JonVr4 on 3Si) | solid motor mounts | LSD insert | KYB GR-2 struts | intrax springs | adj. control arms | ss brake lines | 16% taller 5th gear (teamrip.com) | H4 conversion | push-button start | datalogger | HKS S-AFR | PLX WB O2 coming soon: adj. cam gears | bi-xenon HID retrofit
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#3
10-25-2007, 07:27 PM
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Re: No Spark, need help quickish
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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
10-25-2007, 09:22 PM
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Re: No Spark, need help quickish
Quote:
__________________
'93 3000gt VR-4
170k, 27k on JDM motor MBC @ 14.5 psi Datalogger Intake T-Pros Downpipe Gutted Pre Cats Mods to come: Upgraded Fuel System and 75 shot of Nitrous, Full Exhaust and hopefully 15Gs Audio Sony Deck Eclipse 6x8 2 ways in the back Clarion Kevlar cone Component System in the front 2 Alpine Type S 10 inch DVc Subs 1 Audiobahn 10 inch DVC D Jones Series One 800 Watt Jensen amp and a soundstream 300 watt 4 ch to the speakers And still under 4000 lbs w/ me in the car
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#6
10-25-2007, 11:33 PM
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Re: No Spark, need help quickish
ok, well its not the PTU, so, do you think it could be the CAS or the ECU?
__________________
'93 3000gt VR-4
170k, 27k on JDM motor MBC @ 14.5 psi Datalogger Intake T-Pros Downpipe Gutted Pre Cats Mods to come: Upgraded Fuel System and 75 shot of Nitrous, Full Exhaust and hopefully 15Gs Audio Sony Deck Eclipse 6x8 2 ways in the back Clarion Kevlar cone Component System in the front 2 Alpine Type S 10 inch DVc Subs 1 Audiobahn 10 inch DVC D Jones Series One 800 Watt Jensen amp and a soundstream 300 watt 4 ch to the speakers And still under 4000 lbs w/ me in the car
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#8
10-26-2007, 04:48 PM
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Re: No Spark, need help quickish
ok, so i swapped the PTU last night, same thing... then i got my datalogger, and tried to run trouble codes with the ignition switch in the on position, and it was telling me there was a Serial Communication Error, and after checking all conections 3 times over, i concluded that everything was quite well hooked up. so im guessing i could have fried the ECU? it is a 93 afterall. is this a possibility?
Also, will my JDM vr4 ECU plug right up to my fed spec vr4 wire harness? thanks guys
__________________
'93 3000gt VR-4
170k, 27k on JDM motor MBC @ 14.5 psi Datalogger Intake T-Pros Downpipe Gutted Pre Cats Mods to come: Upgraded Fuel System and 75 shot of Nitrous, Full Exhaust and hopefully 15Gs Audio Sony Deck Eclipse 6x8 2 ways in the back Clarion Kevlar cone Component System in the front 2 Alpine Type S 10 inch DVc Subs 1 Audiobahn 10 inch DVC D Jones Series One 800 Watt Jensen amp and a soundstream 300 watt 4 ch to the speakers And still under 4000 lbs w/ me in the car
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