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Forum namePerformance/Engine
Topic subjectHow to check for spark
Topic URLhttps://forums.2gnt.com/dcboard.php?az=show_topic&forum=i5&topic_id=118341
118341, How to check for spark
Posted by therealpit, Aug-16-07 09:48 AM
I dont think I'm getting any spark but I'm not sure about how to check if I am. Do you just place a spark plug in the boot and ground it to the exhaust manifold and try to start the car? I wasnt sure. Thanks for the help.
118342, RE: How to check for spark
Posted by RedLineInc07, Aug-16-07 09:52 AM
Originally posted by therealpit
I dont think I'm getting any spark but I'm not sure about how to check if I am. Do you just place a spark plug in the boot and ground it to the exhaust manifold and try to start the car? I wasnt sure. Thanks for the help.


That will work...yup they also have a light you can plug into the cable that will light up when you crank the car over





Proud Owner of a few Check Engine Lights...I mean eclipses.

**1995 Talon ESI ( Parts Car )
1997 Eclipse Gs Heavy mods
1998 Eclipse Rs Daily driver
*1997 Eclipse GS ( 30 miles )Fresh Motor

*Please E-Mail for more info...GREAT CAR!!
**2g parts available please E-mail or PM for 24/7 cell number ;-)
118343, RE: How to check for spark
Posted by RoninEclipse2G, Aug-16-07 09:58 AM
Originally posted by RedLineInc07
Originally posted by therealpit I dont think I'm getting any spark but I'm not sure about how to check if I am. Do you just place a spark plug in the boot and ground it to the exhaust manifold and try to start the car? I wasnt sure. Thanks for the help.
That will work...yup they also have a light you can plug into the cable that will light up when you crank the car over

I would ground it directly to the head, better continuity. do it in a very dark area too, sometimes spark can be hard to see
118344, RE: How to check for spark
Posted by therealpit, Aug-16-07 10:21 AM
On the side of the head or on the valve cover?
118345, RE: How to check for spark
Posted by RoninEclipse2G, Aug-16-07 10:34 AM
side of the head, the gasket kills the continuity to the valve cover
118346, RE: How to check for spark
Posted by therealpit, Aug-16-07 10:36 AM
ok I'll try that in a few minutes and I'll let you know if I'm getting spark.
118347, RE: How to check for spark
Posted by therealpit, Aug-16-07 01:07 PM
ok i have no spark, i just replace the asd relay. still no spark. how do i test the coil? the car cranks but wont start and its getting fuel.
118348, RE: How to check for spark
Posted by RoninEclipse2G, Aug-16-07 01:14 PM
you can put a test light to the harness to the coil and see if it's getting power. also use a multimeter to ohm out the coil, I don't have the specs but if it measures too high or low you won't get any power out of it
118349, RE: How to check for spark
Posted by therealpit, Aug-16-07 01:24 PM
dont have a test light but do have a multimeter can i check voltage at the plug using multimeter and if so should it be the same reading that the battery is getting
118350, RE: How to check for spark
Posted by RedLineInc07, Aug-16-07 02:15 PM
Originally posted by therealpit
dont have a test light but do have a multimeter can i check voltage at the plug using multimeter and if so should it be the same reading that the battery is getting


YOu should check your crank and cam sensor for 6.6v at crank...if there isn't voltage there check your ecu.



Proud Owner of a few Check Engine Lights...I mean eclipses.

**1995 Talon ESI ( Parts Car )
1997 Eclipse Gs Heavy mods
1998 Eclipse Rs Daily driver
*1997 Eclipse GS ( 30 miles )Fresh Motor

*Please E-Mail for more info...GREAT CAR!!
**2g parts available please E-mail or PM for 24/7 cell number ;-)
118351, RE: How to check for spark
Posted by therealpit, Aug-16-07 02:36 PM
ok just checked the cam and crank sensors i have 7.45 volts at both of them and nothing going into the coil pack. Does that mean the ecu is bad or could it be a short in the wire somewhere?