5ktq ISV temp sender
Peter McConnel
peter at madriver.com
Sun Sep 17 22:36:12 EDT 2000
>
>> idle/wot resoldered ,repositioned and tested ad-nauseum, idle adjustment
>> screw brought in a bit. now idles at ~750. am in the process of
>> testing the
>> ISV, but need to replace the coil first i think. the secondary
>> ignition test
>> failed: infinity ohm between 1 and 15...
>
> In consulting the bentley, the secondary test is for the resistance between
> 1 and 4 (with 4 being the connector for the coil wire) which is spec'd at
> 5-9k. Also note that you should check the ground connection of the coil at
> the firewall.. strange things can occur if you have a bad ground here. This
> is (one) of the reasons why I couldn't get my 4ktq running at first.
>
> For the PRIMARY test (between pins 1 and 15) the spec is .5-1.5 . Bentley
> says if it fails spec to replace the coil so aparently the ground is
> irrelevant to the resistance spec between 1 and 15 but IS relevant for 1-4.
> So it sounds like your suspision is correct.
>
>
> HTH
>
> -Marc-
OOPS! i wasn't looking at the book and got the tests mixed up. the 1 - 15 is
ok. i retried the 1 - 4 with the info you had and got 7.6k ok. so the coil
is ok at least as far as the ISV is concerned. where is the ground? is it a
wire or is the body the ground? so many questions! thanks for your help
Peter
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