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1990 Honda Accord with no spark
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CarGuru > Technology > 1990 Honda Accord with no spark 13 August 2006 01:01:31

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1990 Honda Accord with no spark

Tepdrake 13 August 2006 01:01:31
 Looking for help. I replaced the igniter (ICM) already. It was tested bad
at Auto Zone. The new one tested good. After installing, still no spark. I
have 12volts on it like the Haynes manual says I should have. I have
ohmed the coil and it checks good per the Haynes manual.
Does anyone have any ideas of why I may not have spark? I hate to buy
parts that I do not need. I am trying to figure out what tells the ICM to
make the coil spark. I understand the old points and condensor method but
not sure what sensor makes the ICM pulse the coil. Any help will be
appreciated.

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TeGGer® 6 April 2005 17:02:23 permanent link ]
 "Comboverfish" <comboverfish@yahoo­.com> wrote in
news:1112761957.960­919.283880@g14g2000c­wa.googlegroups.com:­

Are you sure your distributor shaft is turning? Those were known for> distributor shaft bushing failure and covered years ago under a recall.


It's a ball-bearing, not a bushing.

Are you sure it's not the '92+ distributors that had the shaft bearing
failures? The '90s had igniter failures AFAIK. The igniter was changed for
'91.

Even if it IS turning, have you looked into the distributor housing> under the rotor and the removeable black plastic shield and inspected> for rust powder from a failing bushing? The reluctors could be packed> with metal/rust powder.


That too is a characteristic of the '92+ distributors. I was told it had
something to do with the revised leak cover and rotor holding in the ozone,
causing rust on the metal parts.

Are you checking for spark at the coil terminal with the cap off?> That's how I would do it. Eliminate the cap and rotor.


According to posts in the various Honda groups, dead coils are common when
the current can't find a proper way to ground, such as when you crank the
car with the cap off or plugs disconnected. Apparently it makes a ground
through the body of the coil, thereby wrecking it.

If correct, the OP may have a damaged coil.

Your opinions?

--
TeGGeR®

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Tepdrake 7 April 2005 07:09:42 permanent link ]
 Thanks everyone for your replies. I had ordered a coil off the internet
before posting this. The new coil secondary to primary measured 19Kohms.
I installed it and the car fired right up! My inlaws had given me this car
and I look forward to getting over 30 MPG with the current gas prices.

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Guest 13 August 2006 01:01:31 permanent link ]
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CarGuru > Technology > 1990 Honda Accord with no spark 13 August 2006 01:01:31

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