7mgte no spark

cre · 02-16-2010, 01:56 AM

No error codes? Manual or automatic transmission? Is there power at the ECU? Does the check engine light up when the key is in the "ON" position but the car is still off? Are the ground wires which connect to the head on the passenger side and the intake manifold on the driver's side all clean and securely fastened?

supra.7mgte · 02-17-2010, 02:07 AM

havent checked for codes yet. ground on the passenger side is good and didnt know there is suppose to be one on the intake... where on the intake does it bolt to and where on the car?

supra.7mgte · 02-17-2010, 02:09 AM

and its manual trans

cre · 02-17-2010, 02:44 AM

The other ground I mentioned consists of two eyelets (4 wires, IIRC) and they connect to the bottom of the lower intake plenum (driver's side of the head).

Check for codes, it'll help see if there are any power supply issues at the ECU.

supra.7mgte · 02-17-2010, 03:47 AM

alright thanks man ill check tomorrow

bradenman1 · 02-17-2010, 04:15 AM

Check to make sure the coil packs are grounded well. when i took mine apart the ground wire was half way decentagrated and the wire was bare. im sure it was causing some of the problems i was experiencing while the car was running but i wont know for sure until i get my new manifold and get her all back together

MA70-3.0GT · 02-17-2010, 05:06 PM

you took the words out of my mouth there, it's easy to overlook this earth especially if (as with mine) it's broken off the coil carrier. IIRC the coils have their own dedicated earths anyway but Toyota fitted the single wire one for a reason I guess...

02-16-2010, 01:56 AM	#1
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	No error codes? Manual or automatic transmission? Is there power at the ECU? Does the check engine light up when the key is in the "ON" position but the car is still off? Are the ground wires which connect to the head on the passenger side and the intake manifold on the driver's side all clean and securely fastened? __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

02-17-2010, 02:44 AM	#4
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	The other ground I mentioned consists of two eyelets (4 wires, IIRC) and they connect to the bottom of the lower intake plenum (driver's side of the head). Check for codes, it'll help see if there are any power supply issues at the ECU. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

02-17-2010, 04:15 AM	#6
bradenman1 3" Exhaust Join Date: Jan 2010 Location: texas Posts: 105	Check to make sure the coil packs are grounded well. when i took mine apart the ground wire was half way decentagrated and the wire was bare. im sure it was causing some of the problems i was experiencing while the car was running but i wont know for sure until i get my new manifold and get her all back together __________________ Cars: 1995 NIssan altima with 2 year old pant on black Drag DR-8 17x7 Wheels with brand new Goodyear Eagle GT's Custom Blue Parking lights with White silverstar head lights JDM Ebay Catback Exhaust. K&N air filter. (Totaled Due To An Idiot) bone stock (for now) 1990 Supra Turbo With a brand new CT-26 Turbo And New Exhaust Manifold. Now With A Brand New Blown Head Gasket Now driving a 99 Nissan Maxima 5spd with the passanger side bashed in from passing out at the wheel nice cars ehh??

02-17-2010, 05:06 PM	#7
MA70-3.0GT 12psi boost Join Date: Oct 2009 Location: Crewe, England Posts: 356	you took the words out of my mouth there, it's easy to overlook this earth especially if (as with mine) it's broken off the coil carrier. IIRC the coils have their own dedicated earths anyway but Toyota fitted the single wire one for a reason I guess... __________________ '89 MA70 Supra GT aero 3.0turbo JDM, Rebuilt motor, K&N intake, 3" stainless turbo-back. New turbo and braided line kit... '89 Honda NC27 400, NC23 cams, open pipe, PC36a shock & possibly Showa USD forks... '83 Yamaha 29R XJ750E-II, number 69 off the line, only runner in the country? Original except Koni shocks '95 Honda PC26 CB500R, Winter hack, hateful, trying to sell it I'm not paranoid, they really ARE after me!!!

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
No spark mystery on 7mgte	jcgrant4	MKIII Supra	9	08-19-2009 06:21 PM
No spark issues	DDBT	MKII Supra	2	01-06-2009 07:08 AM
7mgte swap no spark	supra4life1386	MKIII Supra	5	11-27-2008 07:57 PM
NGK Spark Plugs	91 Supra	MKIII Supra	5	08-07-2007 03:52 AM

02-17-2010, 02:07 AM	#2
supra.7mgte Intake Join Date: Feb 2010 Location: Alberta Posts: 36	havent checked for codes yet. ground on the passenger side is good and didnt know there is suppose to be one on the intake... where on the intake does it bolt to and where on the car?

02-17-2010, 02:09 AM	#3
supra.7mgte Intake Join Date: Feb 2010 Location: Alberta Posts: 36	and its manual trans

02-17-2010, 03:47 AM	#5
supra.7mgte Intake Join Date: Feb 2010 Location: Alberta Posts: 36	alright thanks man ill check tomorrow