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Old Nov 21, 2016 | 07:30 AM
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no spark
driving along in 94 f150 302 auto,sputtered and backfired 3 times,died,replaced coil,ecm,and dist,still no spark at plugs...anybody dealt with this problem? thanks Darryl
 
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Old Nov 21, 2016 | 09:08 AM
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Please provide more details on the definition of "ecm".
 
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Old Nov 21, 2016 | 10:22 AM
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engine control module
 
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Old Nov 21, 2016 | 10:32 AM
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From: Easton,Ks
Originally Posted by Darryl
engine control module
What does it look like?

Like this?


/
 
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Old Nov 21, 2016 | 12:07 PM
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yes it does
 
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Old Nov 21, 2016 | 05:23 PM
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Originally Posted by Darryl
yes it does
That would an Ignition Control Module (ICM).

The Engine Control Module (in Ford terms a Powertrain Control Module) is located behind the driver side kick panel. It's accessed from the engine side of the firewall.

A bad PCM can prevent spark. Unplug it, then check for spark.

For reference the PCM plug is located near the brake booster:

courtesy of Subford


A little wider angle:

courtesy of subford
 
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Old Nov 21, 2016 | 05:31 PM
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That's not the ECM/PCM. That's the ICM/TFI module. It only controls the spark and nothing else.
 
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Old Nov 23, 2016 | 05:02 PM
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ok i replaced the ECM today with a used 1..still no spark,but has pulse at injector but not at the coil....HELP!! we've run out of parts to change
 
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Old Nov 23, 2016 | 05:13 PM
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Originally Posted by Darryl
ok i replaced the ECM today with a used 1..still no spark,but has pulse at injector but not at the coil....HELP!! we've run out of parts to change
Let's go back to the same question (part 2): Please define "ok i replaced the ECM today with a used 1"
 
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Old Nov 23, 2016 | 05:39 PM
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You probably have a broken wire between the coil and TFI module. Throwing parts at it, is not going to help. You need to do diagnostics.
 
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Old Nov 23, 2016 | 05:59 PM
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Originally Posted by Lead Head
You probably have a broken wire between the coil and TFI module. Throwing parts at it, is not going to help. You need to do diagnostics.
Ford Ignition Module Test. Fender Mounted Module (ICM).
 
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Old Nov 24, 2016 | 03:43 AM
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rla 2005,i not sure how to explain to you ...i went to a junkyard found a truck same yr and same options,took the computer from it and replaced mine....does
that define it for you?
 
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Old Nov 24, 2016 | 07:14 AM
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Did you unplug the item in the image below and see if you had spark while cranking?

The PCM:


/
 
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Old Nov 24, 2016 | 08:57 AM
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Originally Posted by Darryl
rla 2005,i not sure how to explain to you ...i went to a junkyard found a truck same yr and same options,took the computer from it and replaced mine....does
that define it for you?
Yes it does. Thanks for the clarification.
 
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