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Old 03-15-2005, 17:01   #1 (permalink)
edleft
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TFI module not on distibutor how 2 check it?

My 92 ranger 3.0L has code faults(565,124,172,173,212,452,542). The TFI is
mounted by my radiator. Is there a test I can perform on it with a
mutlimeter, Ohms check. It has only the 6-pin connector the (H1-H6) no
(D1-D3) I found a resistance check on-line for the distibutor mounted tfi
but nothing for this one.

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Old 03-15-2005, 19:01   #2 (permalink)
Tom Adkins
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Re: TFI module not on distibutor how 2 check it?

edleft wrote:
> My 92 ranger 3.0L has code faults(565,124,172,173,212,452,542). The TFI is
> mounted by my radiator. Is there a test I can perform on it with a
> mutlimeter, Ohms check. It has only the 6-pin connector the (H1-H6) no
> (D1-D3) I found a resistance check on-line for the distibutor mounted tfi
> but nothing for this one.
>


No, it can't be tested accurately with an ohm meter. Many parts stores can test your
module, although the only sure test is replacing it with a known good one.
You can narrow the problem down to the module by checking related components ie:
power to the coil, the coil itself, proper power and ground to the module, pickup
coil, etc.

You don't state what the concern is or what you have checked, but it sounds like a
no start. If you haven't already, check for spark, fuel pressure, and injector pulse.
If you lack spark and injector pulse then the module is a likely suspect with the
pickup coil a close second.
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Old 03-15-2005, 19:01   #3 (permalink)
pick one
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Re: TFI module not on distibutor how 2 check it?


"edleft" <edleft@yahoo.com> wrote in message
news:c4ffb2354544523fd52d582ef0f46008@localhost.talkaboutautos.com...
> My 92 ranger 3.0L has code faults(565,124,172,173,212,452,542). The TFI is
> mounted by my radiator. Is there a test I can perform on it with a
> mutlimeter, Ohms check. It has only the 6-pin connector the (H1-H6) no
> (D1-D3) I found a resistance check on-line for the distibutor mounted tfi
> but nothing for this one.
>

First off you need to define the codes. I'm willing to bet the truck does not
run? Run a fuel pressure test, one of your codes indicate the fuel pump circuit
is open.


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