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Here is a 2.3L vehicle electrical schematic http://econtent.autozone.com:24991/z...528018efdb.gif & we can see in the upper left, that it shows the coil packs being controlled out of the ICM, with inputs from the ECM & dual vane crank sensor, which also provides the ECM timing into for fuel injector squirt timing, so as has been said, the ICM is a busy fellow, common problem part & its heat problem reputation have earned it a well deserved spot on your suspect list. So, don't feel like we're fussing at you for giving up the trouble shoot & pulling the trigger on a new ICM.
EDIT:
SO if you come by your LED test light, or just decide you want to do some more testing, have a look here at scenario #3 for some more ideas on ICM testing, with pictorials. http://easyautodiagnostics.com/ford/...sensor-tests-3
Hello PawPaw...
I`m a happy camper.....
I just returned from the hospital yesterday, had an operation on my throat, and today the new ICM came in. I couldn`t wait so off i went and installed the new ICM with heat transfer paste. Connected the timing light up to the #1 right spark plug and startedit. Lots of flashes and so it is firing on all plugs. NO MORE CEL.. truck is running great.
Thanks for all ther help buddy
Wish you a great weekend and a nice holiday monday.
Is a 94 US Ranger, bought it for a soldier. Was first sold in Florida.
Sorry and it is an OBD-1. My OBD-1 connector is located behind the power distribuatiob box on the drivers side. the error code was during the KOEO test.
I think I found the SPOUT connector ( on drivers side near the OBD-1 conector). A little gray plug in the engine harness. with a green and a gray-red striped wire. I have disconnected it and re-connected it nothing happens. Is their some kind of voltage reading I can get off the two wires. Or is this not the SPOUT?
test point
eng. compartment
is this the SPOUT
This is "A" SPOUT but not the one you are wanting I don't believe. The one you're holding in the picture is an added control aperture for your AC I believe. The one you want is on the drive side under the hood all the way forward in next to your radiator. That one would be your timing spout.. I'll have to look it up again but I think if you are having idling issues, stop an MD site issues and a few others in that line there is a series of features you can do to reset your "spout/ecm" relationship. Like pull spout with key on, turn key to Run ( not start), let it cycle through the prestart check phase, turn key off, do again from turn key to start...after you turn key off the second time then plug y I urge spout back in. From there it's normal driving and a drive/learn over again process. Just drive normal and somewhere between the next 50-100 miles your ecm will reset all learning of your driving habits to the most efficient definition set to the way you drive.
pretty high-tech redneck stuff for a 94 Ranger but it works.
Thanks PawPaw. I will try to check the timing later today or tomorrow. Also I will hook up a led between the two wires on the SPOUT and see if it lights up.
I´m headed to a car show with my 64 ranchero deluxe today.
The truck starts fine and it isn´t sluggest to the throttle. No knocking. if I hold the gas pedal down to get a higher idle ( say 1500 rpm) the check enging light won´t come on until it idles for a little bit.
I don´t have a wiring diagram for the truck to make sure the wire colors are correct on the SPOUT. Internet said something about pink wires but mine are green abd a gray with red strip.
Another thing, as an afterthought....
It was explained to me that since this is ecp/pcm you cannot adjust the timing. Even "rebooting" the SPOUT like that, that's just a "kick in" type of help for the ecm to pick up or let go (forward or advance) timing by 1% to no more than 2% either direction. You adjust the "Timing" by adjusting the fuel and air.... which in turn "adjusts the timing" , just inadvertently. When you adjust the fuel and air "of you get it right, then the computer affluent the timing to the fuel to air to the most efficient from there.... headache so yes but no you can but can't adjust the timing on this year Ranger.
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Hello PawPaw...
Thanks for all ther help buddy
Thanks PawPaw. I will try to check the timing later today or tomorrow. Also I will hook up a led between the two wires on the SPOUT and see if it lights up.
64 ranchero deluxe today.
