spark problem

Nopis1O · 04-20-2009, 05:38 PM

IM NOT GETTING SPARK! trying to figure out why.

when i do the test procedure it sparks. but when i hook it back up and try to crank it its not. i know it worked when i pulled it apart. so i messed up something.

if anybody has any suggestions for me to try letme know. i will try just about anything at this point. its probably a simple fix that im just over looking.

Rotary#10 · 04-20-2009, 11:51 PM

okie what procedure did u do to test the spark ?

Whizbang · 04-21-2009, 01:26 AM

Quote:

Originally Posted by Rotary#10

okie what procedure did u do to test the spark ?

i would like to know exactly what you did as well. Are you simpling using one of those illuminated spark plug testers?

Also, are you not getting spark for leading AND trailing?

Rx-7fetish · 04-22-2009, 09:06 PM

How do you know its not sparking? Besides it wont start. That could be plenty of other stuff stopping that, so did you take it apart, test for spark, have spark then put it back together, it not start then check it again and you didnt? Or just assume you dont because it wont start once its back together?

NoDOHC · 04-22-2009, 09:36 PM

A timing light will not show spark, even if it is working.

If both leading plugs are not in place, neither will spark.

If your tach works, you have spark. (unless the trailing coil is bad)

04-20-2009, 11:51 PM	#2
Rotary#10 Rotorhead Join Date: Sep 2008 Location: "the town " Oakland Posts: 219 Rep Power: 17	okie what procedure did u do to test the spark ? __________________ Currently running: 90 GTUs converted to S5 TurboII. Track car. 90 N/A GTUs.. Running project car 89 N/A GTUs in Black #2 10/6/18 Blown coolant seal undergoing rebuild and restomod.

04-22-2009, 09:36 PM	#5
NoDOHC The quest for more torque Join Date: Sep 2008 Location: Sheboygan, Wisconsin Posts: 855 Rep Power: 17	A timing light will not show spark, even if it is working. If both leading plugs are not in place, neither will spark. If your tach works, you have spark. (unless the trailing coil is bad) __________________ 1986 GXL ('87 4-port NA - Haltech E8, LS2 Coils. Defined Autoworks Headers, Dual 2.5" Exhaust (Dual Superflow, dBX mufflers) 1991 Coupe (KYB AGX Shocks, Eibach lowering springs, RB exhaust, Stock and Automatic)

04-20-2009, 05:38 PM	#1
Nopis1O Rotary Fanatic Join Date: Apr 2008 Location: Mid State Illinois Posts: 159 Rep Power: 18	spark problem IM NOT GETTING SPARK! trying to figure out why. when i do the test procedure it sparks. but when i hook it back up and try to crank it its not. i know it worked when i pulled it apart. so i messed up something. if anybody has any suggestions for me to try letme know. i will try just about anything at this point. its probably a simple fix that im just over looking. __________________ 1988 Fc Vert. Super Stock 1990 Fc Hard top: Brideported 13b, weber carb, 350z wheels w/nitrogen, or 16in BBS meshies, Msd, Racaro Racing Seats, Custom Gauge cluster, custom Intake, Relocated Battery, 3inch header back borla exhaust system, Alpine stereo system, Wire tucked, S4 shift boot&knob, custom Strut bar, And soon to come a Full black w/ gold pearl paint job, powder coated break calipers, all black interior, bride headliner/door panels.

04-22-2009, 09:06 PM	#4
Rx-7fetish Blue Blur Join Date: Jan 2009 Location: Windsor Posts: 211 Rep Power: 0	How do you know its not sparking? Besides it wont start. That could be plenty of other stuff stopping that, so did you take it apart, test for spark, have spark then put it back together, it not start then check it again and you didnt? Or just assume you dont because it wont start once its back together?