No Fire--help
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From: Arkansas
Originally Posted by mrainey889
Hmm...have you thought about swapping out the ECU/ECM? A 1993 Ford would have considerable computer controls/sensors. I would assume spark control/timing would be one of those items...
If you do determine the ECU is the problem, I found a website:
www.ecudirect.com
They appeared to have your ECU for $250 w/ a $75 core charge. I am in no way meaning to promote that website, it is simply one of many that came up when I did a google search. What really struck me as odd was that Autozone's website did not appear to carry an ECU for your truck, neither did JC Whitney...
Just my two cents,
Good Luck!
If you do determine the ECU is the problem, I found a website:
www.ecudirect.com
They appeared to have your ECU for $250 w/ a $75 core charge. I am in no way meaning to promote that website, it is simply one of many that came up when I did a google search. What really struck me as odd was that Autozone's website did not appear to carry an ECU for your truck, neither did JC Whitney...
Just my two cents,
Good Luck!
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From: Arkansas
Originally Posted by dwsf150
When you said you replaced the dist, was it new and complete with the pick-up coil? Try unplugging the spout wire. If you have a noid light check to see if injectors are pulsing, if not the PCM may not be powered up or dead in the water. In the under hood fuse box swap the PCM relay with another to see if it starts.
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From: Arkansas
Originally Posted by dwsf150
When you said you replaced the dist, was it new and complete with the pick-up coil? Try unplugging the spout wire. If you have a noid light check to see if injectors are pulsing, if not the PCM may not be powered up or dead in the water. In the under hood fuse box swap the PCM relay with another to see if it starts.
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From: Arkansas
Originally Posted by GIJoeCam
Start with the basics. Pop the distributor cap and make sure the rotor turn when you crank the engine. We've already determined that there is no spark, but it can be caused by something as simple as a bad coil wire. Check for continuity through it. If the ECU isn't calling for a spark, the power to the coil does not get interrupted, which is what causes the spark.
-Joe
-Joe
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From: Along Lake Erie
Originally Posted by rednckbill
the rotor is turning when i crank the engine. there are 12 v TO and FROM the coil NOW what?????
It'll be the ignition module/PCM/ECU whatever you want to call it, most likely. Either it's dead, or it lost power. Are all your fuses good?
-Joe
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From: Arkansas
Originally Posted by GIJoeCam
I was talking about the coil wire that runs from the coil to the center post on the distributor. You need to have continuity through it, otherwise the spark can't get from the coil to the distributor cap.
It'll be the ignition module/PCM/ECU whatever you want to call it, most likely. Either it's dead, or it lost power. Are all your fuses good?
-Joe
It'll be the ignition module/PCM/ECU whatever you want to call it, most likely. Either it's dead, or it lost power. Are all your fuses good?
-Joe
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From: St. Louis (Out in the woods)
Unless you want to waste more time, money, and bandwidth, go back to my last post and read it carefully.
If you have it in your head that it's the computer without doing any testing to show it's at fault, well, heck, it's your time and money....replace it if you want to...
Your choice...
Steve
If you have it in your head that it's the computer without doing any testing to show it's at fault, well, heck, it's your time and money....replace it if you want to...
Your choice...
Steve
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From: Topeka Kansas
Here is a link to a duraspark system. Some of the old distributors used points. The coil should fire every time the stator signals the ignition module.
You should be able to remove the coil wire from the distributor cap and have someone turn the engine over. Hold the end of the coil wire near the engine and you should hear or see spark. If you don't get spark then the coil wire is probably bad (or possibly the coil). If you get spark from the coil wire then the problem is from the distributor cap to the plugs. Most distributors must have the wires in the correct sequence for the engines firing order and can be rotated to adjust timing.
http://users3.ev1.net/~bmarr/duraspa...on_upgrade.htm
You should be able to remove the coil wire from the distributor cap and have someone turn the engine over. Hold the end of the coil wire near the engine and you should hear or see spark. If you don't get spark then the coil wire is probably bad (or possibly the coil). If you get spark from the coil wire then the problem is from the distributor cap to the plugs. Most distributors must have the wires in the correct sequence for the engines firing order and can be rotated to adjust timing.
http://users3.ev1.net/~bmarr/duraspa...on_upgrade.htm
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From: Arkansas
pulled computer out last pm and opened it up . it is fried . am now checking the wiring harness for a short somewhere. this could fry the computer ,right? thanks guys.
Last edited by rednckbill; Apr 21, 2006 at 10:52 AM.