Re: problem with '93 camry 4cyl

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Old 19 Apr 2004, 10:15 pm   #1 (permalink)
mlambie
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Default Re: problem with '93 camry 4cyl

how did you determine that it was the ignition coil on your camry. My son
has a 1992 v6 camry which has been running great and then one day it died
going through an intersection and would not start again. It cranks like
mad but I have no spark at the plug. I checked the ignition coil
resistance and found the secondary resistance to be a little high 12.2k
ohms vs 10.4 max spec. So that appears to be a source of a weak spark but
not NO spark. I tried to check the resistance of the plug wires but get
an "open" reading. No way that 3 of the 3 plug wires I checked could all
have failed at the same time. I think they are silicon, do you have to
measure resistance differently. I measured the resitance of the igniter
but do not see a spec anywhere. Any help.

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Old 24 Apr 2004, 09:16 am   #2 (permalink)
Alex Marcuzzi
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Default Re: problem with '93 camry 4cyl

When my 1993 Camry 4cyl would not start with very little or no spark I too
measured the resistance of the coil and it seemed to be close to spec but in
the end it turned out to be the coil. Since a new coil was expensive (over
$100 CDN and you cannot return electric parts for credit) and I was not sure
to be the culprit I took a chance on a used one from a wrecker and it turned
out to be the problem. I have read more often that when there is an ignition
problem it is usually the high voltage coil rather then the igniter. If you
buy a used one and it does not fix the problem you can usually take it back
for credit on another part.
Alex
"mlambie" <mlambie@ameritech.net> wrote in message
news:b7a476f58ec09859951bdf2ecbe9b7cc@localhost.ta lkaboutautos.com...
> how did you determine that it was the ignition coil on your camry. My son
> has a 1992 v6 camry which has been running great and then one day it died
> going through an intersection and would not start again. It cranks like
> mad but I have no spark at the plug. I checked the ignition coil
> resistance and found the secondary resistance to be a little high 12.2k
> ohms vs 10.4 max spec. So that appears to be a source of a weak spark but
> not NO spark. I tried to check the resistance of the plug wires but get
> an "open" reading. No way that 3 of the 3 plug wires I checked could all
> have failed at the same time. I think they are silicon, do you have to
> measure resistance differently. I measured the resitance of the igniter
> but do not see a spec anywhere. Any help.
>



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Old 27 Apr 2004, 10:13 pm   #3 (permalink)
mlambie
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Default Re: problem with '93 camry 4cyl

Final diagnosis on my 1990 Camry 6 cyclner. IT turned out to be a bad coil
and the rotor was cracked nearly in half and burnt very bad. Never seen a
rotor die that bad. Not sure why the ignition wire resistance read so
high but I guess it must be related to the amount of voltage my voltmeter
uses to determine resistance and the very high resistance of the wires to
prevent radio noise. Anyway, put everything back together and it
cranks... and even runs like a champ. One item to know... my manual says
there are two bolts to remove to get the distributor off.. and in fact
there are three. So that cost me a distributor. Also, take care not to
damage the ignition wire holders that attach to the distributor. They are
$6 each and not carried in stock by the Toyota dealer. Also when you go
to order them, take your VIN number as 1990 was a split year for two
different configurations of the ignition wire holder.

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