98 civic ex not firing
07-14-2012
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98 civic ex not firing i have a 98 EX, and i was on my way to drop my kids off at the babysitters house. it started up fine and when i got to the first light i stopped, and when it turned green it died. the car is getting fuel to the engine, but there is no fire. i have changed the cap and rotor, and tested the coil pack it is fine, and we have changed the ICM. Still no fre. Help this is our only car and i need to get it fixed ASAP.
07-15-2012
#2
If you think a good mechanic is expensive, try hiring a bad one
Re: 98 civic ex not firing
and tested the coil pack
07-15-2012
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We used an ohm meter to check the coil pack, and we used a test light. the primary and secondary are within specs. just no fire out of the secondary. i am thinking it my be my neutral safety switch as the car died when i was letting my clutch out. any sugestions?
07-15-2012
#4
If you think a good mechanic is expensive, try hiring a bad one
Re: 98 civic ex not firing
We used an ohm meter to check the coil pack, and we used a test light. the primary and secondary are within specs. just no fire out of the secondary.
B) What did you test with the test light?
C) Do you have a dwell meter?
i am thinking it my be my neutral safety switch as the car died when i was letting my clutch out.
any sugestions?
Last edited by ezone; 07-15-2012 at 09:13 AM. Reason: I can't read.
07-15-2012
#6
If you think a good mechanic is expensive, try hiring a bad one
Re: 98 civic ex not firing
Got any codes?
Depending on the light characteristics and due to the dwelltime involved, an incandescent lamp MIGHT NOT flicker. An LED test light MIGHT have been better to use.
Use a dwellmeter to test.
Do you know how to use one?
(We used to use them all the time back in the good ol' days of points and carbs.)
Set to 4 cylinder scale.
Connect it to the neg. side of the coil and to battery ground.
Crank the engine.
If there is ANY reading at all (even only 2 degrees), the ICM is trying to fire the coil, and the coil is bad.
If the dwell reading is 0 or 90, the problem is elsewhere. Something isn't even trying to fire the coil.
See, most of the time I see these with a hole burned through the side of the coil. It may still make a tiny spark out of the tower, but the spark will seek the closest ground when stressed, and that is the metal shield around the coil. The coil would pass all tests except for the actual sparks output.
I bet the coil is bad, no matter what your ohmmeter said.
HTH
Depending on the light characteristics and due to the dwelltime involved, an incandescent lamp MIGHT NOT flicker. An LED test light MIGHT have been better to use.
Use a dwellmeter to test.
Do you know how to use one?
(We used to use them all the time back in the good ol' days of points and carbs.)
Set to 4 cylinder scale.
Connect it to the neg. side of the coil and to battery ground.
Crank the engine.
If there is ANY reading at all (even only 2 degrees), the ICM is trying to fire the coil, and the coil is bad.
If the dwell reading is 0 or 90, the problem is elsewhere. Something isn't even trying to fire the coil.
See, most of the time I see these with a hole burned through the side of the coil. It may still make a tiny spark out of the tower, but the spark will seek the closest ground when stressed, and that is the metal shield around the coil. The coil would pass all tests except for the actual sparks output.
I bet the coil is bad, no matter what your ohmmeter said.
HTH
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