Coil pack issues!!!!

Supra_Sicc · 11-03-2009, 05:13 AM

my two new coil packs are dead. I had them on and fired right up. drove it around and hit a big bump.and then the dreaded stall...i immediatly checked the coils... and no fucking spark on the two new ones. i noticed my ground was broken(did it fry them? and if so why just those two and not my old one. maybe a split line shorting the two out?)and now gonna try indvidual grounds on each pack.. and if they are fried i got a year warrenty on em.

And boy today was the first time i got to drive the beast(bought the beast saturday not running)no spark to the two coil packs on their and a broken ground.... same situation. but the motor pulls smoothly up to 4.5 grand( didnt wanna push it) this is the first car ive bought. i guess you get what you pay for.1400...

cre · 11-03-2009, 05:43 AM

The 7M-GTE runs a "wasted spark" setup. Which cylinders are dropping out on you? It's quite likely the igniter or the wiring in between is the problem.

Supra_Sicc · 11-03-2009, 06:13 AM

Quote:

Originally Posted by cre

The 7M-GTE runs a "wasted spark" setup. Which cylinders are dropping out on you? It's quite likely the igniter or the wiring in between is the problem.

it is 1-6-3-4 are the ones dropping out. which fucking sounds like the wiring inbetween .

MA70-3.0GT · 11-03-2009, 01:32 PM

Hi, I've got running issues too but there's no need for language like that mate. Supra's are a pretty cool car & I'd imagine a fair few kids read this forum as a result... Not that I'm offended in any way (you wanna hear the mouth I've got on me) but there's no way it can just slip out when you're typing it.

Supra_Sicc · 11-03-2009, 02:29 PM

Quote:

Originally Posted by MA70-3.0GT

Hi, I've got running issues too but there's no need for language like that mate. Supra's are a pretty cool car & I'd imagine a fair few kids read this forum as a result... Not that I'm offended in any way (you wanna hear the mouth I've got on me) but there's no way it can just slip out when you're typing it.

ok well im alittle frustrated. i love the car handles and runs great. when it does run but it keeps llosing power to the first 2 coil packs and leaving the third one(or first one off the harness) with spark. so maybe its in the splice were the other 2 keep loosing power or bad connection

cre · 11-04-2009, 01:52 AM

Start here: http://www.cygnusx1.net/Supra/Librar...aspx?S=IG&P=12

A bad ground can cause crap performance but it won't kill a coil.

Supra_Sicc · 11-04-2009, 05:17 AM

Quote:

Originally Posted by cre

Start here: http://www.cygnusx1.net/Supra/Librar...aspx?S=IG&P=12

A bad ground can cause crap performance but it won't kill a coil.

thanks for the link i was just about to go look for one. Im thinking it shorted out. the 3 hot wires coming from the harness going into the coil pack were exposed completly at the splice. so i re heat shrinked it. but all my coil packs are dead. i got power going to them but nothing coming out. -_-. anyone have a coil pack for sale?

2jzmaestro · 11-04-2009, 07:21 PM

Quote:

Originally Posted by Supra_Sicc

thanks for the link i was just about to go look for one. Im thinking it shorted out. the 3 hot wires coming from the harness going into the coil pack were exposed completly at the splice. so i re heat shrinked it. but all my coil packs are dead. i got power going to them but nothing coming out. -_-. anyone have a coil pack for sale?

i found some coil packs on http://www.toyotapartszone.com

they are pretty cheap. might as well buy new ones and if anythign return them haha jk

Supra_Sicc · 11-05-2009, 03:57 AM

thanks for link, im assuming i fixed the problem. does it make sense that my coils could have shorted out due to the exposed power wires -_- should have noticed that when reinstalling the new coil pack.

18 yrs old, senior in highschool, and work 45+hours a week at an autobody shop. but no ill buy a non running 7mgte swapped supra lol the heart ache was worth it. hopefully shes running saturday

(when my coils come in the mail)

cre · 11-05-2009, 05:07 AM

You're more likely to destroy the igniter or ECU from shorts in that area then the coils.

Which wires were shorted? Post colors and pin numbers: http://www.cygnusx1.net/Supra/Librar...x?S=Main&P=040

You really need to dig in and clean up that harness if you've got that many exposed wires... it's possible there's a lot more damage than just that unless you know that area's screwed up just from someone dicking with it in the past.

Measure the resistance across all of the coils and compare, that'll help you identify which ones really are suspect... if any. The process is covered in the link I gave you, did you bother to do it? http://www.cygnusx1.net/Supra/Librar...aspx?S=IG&P=12

11-03-2009, 05:13 AM	#1
Supra_Sicc Stock Join Date: Nov 2009 Location: Nor Cal (Orangevale) Posts: 5	Coil pack issues!!!! my two new coil packs are dead. I had them on and fired right up. drove it around and hit a big bump.and then the dreaded stall...i immediatly checked the coils... and no fucking spark on the two new ones. i noticed my ground was broken(did it fry them? and if so why just those two and not my old one. maybe a split line shorting the two out?)and now gonna try indvidual grounds on each pack.. and if they are fried i got a year warrenty on em. And boy today was the first time i got to drive the beast(bought the beast saturday not running)no spark to the two coil packs on their and a broken ground.... same situation. but the motor pulls smoothly up to 4.5 grand( didnt wanna push it) this is the first car ive bought. i guess you get what you pay for.1400... Last edited by Supra_Sicc; 11-03-2009 at 05:20 AM.

11-05-2009, 03:57 AM	#9
Supra_Sicc Stock Join Date: Nov 2009 Location: Nor Cal (Orangevale) Posts: 5	woot new coils thanks for link, im assuming i fixed the problem. does it make sense that my coils could have shorted out due to the exposed power wires -_- should have noticed that when reinstalling the new coil pack. 18 yrs old, senior in highschool, and work 45+hours a week at an autobody shop. but no ill buy a non running 7mgte swapped supra lol the heart ache was worth it. hopefully shes running saturday (when my coils come in the mail) __________________ 1989 Toyota supra. 7mgte swap Hks ssqv blow off valve/Tokico Blue Suspension/Greddy Turbo Timer/ARP Head Studs,torqued to 85lbs/Titan Motorsports Metal Head Gasket/RPS Max Pressure Plate/Toyota Turbo Clutch Disc/1 PC Aluminum Driveshaft. I need help with my turbo timer!!!

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11-03-2009, 05:43 AM	#2
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	The 7M-GTE runs a "wasted spark" setup. Which cylinders are dropping out on you? It's quite likely the igniter or the wiring in between is the problem.

11-03-2009, 01:32 PM	#4
MA70-3.0GT 12psi boost Join Date: Oct 2009 Location: Crewe, England Posts: 356	Hi, I've got running issues too but there's no need for language like that mate. Supra's are a pretty cool car & I'd imagine a fair few kids read this forum as a result... Not that I'm offended in any way (you wanna hear the mouth I've got on me) but there's no way it can just slip out when you're typing it.

11-04-2009, 01:52 AM	#6
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Start here: http://www.cygnusx1.net/Supra/Librar...aspx?S=IG&P=12 A bad ground can cause crap performance but it won't kill a coil.

11-05-2009, 05:07 AM	#10
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	You're more likely to destroy the igniter or ECU from shorts in that area then the coils. Which wires were shorted? Post colors and pin numbers: http://www.cygnusx1.net/Supra/Librar...x?S=Main&P=040 You really need to dig in and clean up that harness if you've got that many exposed wires... it's possible there's a lot more damage than just that unless you know that area's screwed up just from someone dicking with it in the past. Measure the resistance across all of the coils and compare, that'll help you identify which ones really are suspect... if any. The process is covered in the link I gave you, did you bother to do it? http://www.cygnusx1.net/Supra/Librar...aspx?S=IG&P=12