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Reporting back: Timed the advance to 10 degrees before top dead center with the SPOUT jumper out, then put the jumper back in and test drove it. Smooth as silk. The engine definitely works better with the jumper in and the PCM controlling spark advance.
JUMPING ONTO THI STHREADHOPING SOMEONE STATESIDE MAY BE ABLE TO HELP , I HAVE A 1996 F53 BASED RV WHICH HAS JUST STOPPED RUNNING ITS A G CHASSIS , SADLY THE FORD CHASSIS NUMBER CHECK TELLS ME I NEED THE GREY REMOTE ICM (STANDARD PART NUMBRT LX226) BUT I KNOW MINE HAS A BLACK ICM REMOTE MOUNTED WHICH I THINK IS STANDARD PARTLX241 ??
WHAT I REALLY NEED IS TO REPLACE THE ICM AND THE DISTRIBUTOR AS I AM STRANDED IN PORTUGAL IN MY TRUCK AND NOBODY HERE WILL EVEN LOOK AT HER FOR ME
WHAT IS TEH CORRCET DISTRIBUTOR AND ICM ? ITS A 7.5 L OR 460CI GASOLINE ENGINE TRUCK MANUFACTURED 1996 IN MEXICO A STRIPPED CHASSIS THOR MOTORCOACH
Roland: I thought my 1995 5.8L Bronco's ICM was the problem, but determined that my ICM was the correct model for my vehicle. My intermittent no start no spark condition eventually became a true no start no spark condition, and when it did I followed the troubleshooting tree here to determine that the stator in my distributor had failed and it was not sending out the PIP pulse signal (basically a cam position sensor) to tell the ICM/PCM to fire a spark. I rebuilt my distributor, but you can buy aftermarket distributors but they must have the same material (steel or cast iron) in the gear or they will ruin your cam. If it becomes necessary, I can find where I posted up that Ford oem data sheet. First, I suggest that you follow this troubleshooting decision tree. And then post up what you find.
"If in doubt about which TFI module belongs on a particular vehicle, consult the ignition system-wiring diagram for the vehicle. If the wire going to pin #4 on the EEC-IV computer comes directly from pin #4 of the TFI module, it is a CCD system. If not, it is a Push Start system." https://www.stangnet.com/mustang-for...module.765890/
Re-visiting this issue as I was surprised to find black TFI's on three different '92/3 4.9 F-150's at the junkyard the other day. By all accounts, they looked factory original; they were certainly Motorcraft-branded.
I have the TFI harness (I cut it long with everything attached) from the '92 in front of me as I type this. Of the three wires that go directly to the PCM it appears that only #2 solid pinkish tan (SPOUT) goes directly from TFI to PCM. #1 pin from the TFI, Gray w/ Orange (PIP) goes to both the distributor and PCM. The third circuit to go to the PCM (Orange w/ Red) originates somewhere in the harness I haven't quite figured out yet - I think it changes color at a junction.
I need to step away and clear my head on all this. Mostly just wanted to point out the data-point on the black TFI's being in '92/3 trucks. I assumed the first one was incorrectly replaced, but three???
As previously stated even Ford part manuals are wrong on which Ignition Control Module is used for Push-Start ignition trucks (1993 and older) as well as CCD Ignition trucks (1994 and later). Since the Ford service manual states to replace the PIP and the TFI/ICM when there is an issue with the PIP signal dropping out (Code 212) I do not find it surprising you found three trucks with the wrong TFI/ICM in a sample geographical area.
Hey rla2005, seeing this thread again, I just wanted to thank you for this info. My '92 went through 3 or 4 ICMs until I found this thread. Smooth sailing ever since, although admittedly I've left a spare (correct) ICM in the console with the installation tool and some silicone grease, just in case! Haha, thanks again
Since the Ford service manual states to replace the PIP and the TFI/ICM when there is an issue with the PIP signal dropping out (Code 212) I do not find it surprising you found three trucks with the wrong TFI/ICM in a sample geographical area.
It was certainly an odd experience from my perspective. The V8 trucks I found all conformed as expected - gray TFI's on pre-'94 trucks - it was only the I6 trucks that had the "wrong" ones. That's what got me questioning if maybe they changed a little ahead of 1994 model year for just the 4.9.
On a related note, I know you should run the matching PCM for the ignition you have, but I've run a CCD '95 PCM on my '91 truck with no apparent issues. I wonder if it's a bigger issue running an early push-start PCM with a later CCD ignition? I haven't tried that and have no plans to. Just a curiosity thing mostly.
Yes, your 1995 model year Bronco should have a black ICM. Your truck has the Computer Controlled Dwell ignition which requires the appropriate Ignition Control Module. Ford/Motorcraft CCD style ICMs are black in color.
1993 and earlier trucks use the gray colored Push-Start style Ignition Control Module. There are two different versions.
This is discussed at length on this forum pretty much every week. Ford's documentation for the most part have the part numbers/descriptions reversed for the actual application. The aftermarket copied their info so most have the same issue. The above is correct and has been verified dozens of times.
I believe the above info is not entirely correct. My 1995 Bronco 5.8L came from the factory with the gray Push-Start style ICM. I know this is the correct ICM because of the external 22k ohm resistor which is taped to the harness next to the ICM. The CCD style ICM does not have the external 22k ohm resistor. So, evidently, not all 1994+ models have CCD style ignition. The gray Push-Start ICMs made their way into some 1995 models at least.
I believe the above info is not entirely correct. My 1995 Bronco 5.8L came from the factory with the gray Push-Start style ICM. I know this is the correct ICM because of the external 22k ohm resistor which is taped to the harness next to the ICM. The CCD style ICM does not have the external 22k ohm resistor. So, evidently, not all 1994+ models have CCD style ignition. The gray Push-Start ICMs made their way into some 1995 models at least.
Then you obviously have a unicorn. Every single Ford drawing and manual (service) I have, and a host of others, show 1994+ F-series gas engine trucks made for the US/Canada market use the CCD style ignition and related ICM. Post some photos of your setup.
01-18-2019, 05:05 AM
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