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93 Ford Escort 1.9 SOHC
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Discussion Starter · #1 ·
Hello all I am planning on manual swapping my 93 escort 1.9 with a manual out of a 92 1.8 I know I will need a new ECU to make the manual work but I am wondering if the ECU from the 92 will work if I get it reprogrammed or if I will have to find a manual ECU for a 1.9 engine. If i need the 1.9 ECU what is the part number?

anything helps because I would love to make this project work.
Thanks
 

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I typed that number into a google search, and several results came up. Also, there was at least one ebay seller having the same part number - with a starting price of over $300. I dont know if its possible to reprogram the 'brain' from a 2nd gen escort.

If you are swapping a 5-speed from a 93 with the 5-speed from a 92, I would imagine there would be no difference to the cars electronics. For curiosity, why are you swapping a 5-speed with a 5-speed?
If your 93 has an automatic trans and you want to swap to a manual, that I can imagine would result in the check engine light coming on pretty often; since the pcm with the automatic is expecting to get info from the automatic trans controller, which a 5-speed trans wont provide.
Do you live in an area where they dont do emissions inspections (yet)? The clean air act calls for all emissions equipment to be in place, even for cars that are exempt from emissions tests due to the age of the vehicle. For the federal versions of our Escorts, the 91's do have an EGR system (for which no one sells parts anymore), but the 92 and 93 escorts dont have EGR systems. (.... the CA emissions versions all do have EGR)
The F4EAT automatic transmissions in these cars are the same from 91-through 96, and arent very difficult to rebuild. The hardest part for me is to get the trans out of the vehicle and back in again. I have rebuilt six of them, and they all still worked well afterward. I would recommend you get the Ford Escort/Tracer Service Manual for the 93, since each of those service manuals (which are cheap on ebay) come with excellent instructions on rebuilding them. I also recommend you get the transgo shift kit, and a rebuilt torque converter. I got most of my master rebuild kits from www(dot)transmissionpartsuse(dot)com.

If you are swapping a 5-speed to a 5-speed, be sure to replace the bushings in the shift rods that extend from the lower back of the transmission. I have done that on both of my 5-speed escorts, and I did it when I had the engine and trans hoisted out. It still had to be done from underneath, since I dont have a lift, and work outside on grass.

If you also get the Electrical and Vacuum Troubleshooting Manual (EVTM) it has all of the wiring diagrams in it, including the pin-out diagram for the PCM in the car. I also got them from ebay.
 

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93 Ford Escort 1.9 SOHC
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Discussion Starter · #5 ·
Yes I would be swapping from an auto to manual trans. Hence the reason why I would need the manual ecu and tcu I figured by swapping these parts I could avoid check engine lights and the car would function because the pcm is not anticipating signals from the auto trans.
 

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you can not bolt a 1.8 trans onto a 1.9 engine. completely different setup. also you cant just 'reprogram' the pcm. you would ideally need to get the pcm and harness out of the donor vehicle. you will need all the shifting mechanism and pedal assembly too. .. there are plenty of threads here, and even some write ups, just need to search.
 

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Actually most EEC hardware is actually the exact same between the autos and manuals, this could be different for escorts so I might be wrong. Typically it really is just a matter of changing some of the PIDs on Mustangs and other Fords, but I don't know if there is existing support for whichever strategy the 93 1.9 EEC-IV uses which makes it far easier said than done. The speed sensor could be incompatible as well as I am not familiar with the differences between model years/transmissions.

If you wanted to explore the reprogramming route you would likely be paying a premium to have someone create support or learning how to disassemble the intel language to make your own binary to reprogram the ECU which is a significant amount of work and not recommended for anyone who isn't already familiar with programming/assembly language/hex editing. This also requires some hardware to either flash the PCM or chip it.

Otherwise, as marclar said, you would need to get the PCM and harness from a donor vehicle which will be the cheapest and easiest option.
 

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I would start with a donor car that is a SOHC LX not a DOHC GT, and have the entire car sitting nearby. Those shifting rods were no longer available from Ford, had to be obtained from a donor car, along with the shift lever and its support 'socket'.
My first escort was a 92LX with an automatic trans (which I had to rebuild), and I liked it well enough (and still have it and use it 16 years later), that i wanted to have a 5-speed. Due to the thicket of issues with an engine swap in an area that has emissions testing (Fairfax county VA), I bought a 5-speed escort that had swallowed an inlet valve seat at 100k miles and wrecked two pistons - and had a worn out clutch. I got used pistons from a JY engine, rebuilt the motor and put in a new clutch and new shifter bushings, and clutch hydraulics. That was 15 years and 80,000 miles ago, and it is still running well.
From the standpoint of a hobbyist who is retired and does his own repairs/maintenance, I dont think the 5-speed is better than the F4EAT automatic. You have to take the trans out in either case, (which I do by hoisting the engine/trans out still bolted together with a cantilever hoist) so I can do most of the work on a bench, not under the car. An important point in areas where they salt the roads in the winter, getting that Vehicle Speed Sensor extracted from the transmission can be extremely difficult - though being on a work bench makes it easier. The only one of my five escorts where the VSS came up without a struggle had spent its first 18 years in a carport in Phoenix AZ. Taking out the VSS is the only way to check the trans fluid (ATF) and add more.
 

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Yes I would be swapping from an auto to manual trans. Hence the reason why I would need the manual ecu and tcu I figured by swapping these parts I could avoid check engine lights and the car would function because the pcm is not anticipating signals from the auto trans.
Manual Escorts (had a 1996 5 speed manual) still have a light that comes on constantly right below the tachometer, it has the shape of an arrow and it is meant to indicate when to upshift
That was the only thing in that car I don't miss bc it was a joy to drive and the clutch was the softest easiest I ever had. After 14 years I lost that car to a drunk driver who rear-ended the Escort at about 80mph and the car didn't catch fire but continued driving fine (DMV forced the demise). '96 Escort with a 5 speed automatic is quite amazing I own one and it is set to go up like this
1st 0-10
2nd 10-20
3rd. 20-30
4th. 30-40
5th above 40mph
 

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in a second gen the automatic is controlled by a separate control unit, the pcm between the manual and auto are more or less the same, minus a few wires here and there.
 

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in a second gen the automatic is controlled by a separate control unit, the pcm between the manual and auto are more or less the same, minus a few wires here and there.
Huh, wonder why Ford wouldn't just use the the EEC-IV since it's capable of controlling an automatic transmission. Guess it was easier since Mazda developed the transmission and had their own controller for it.
 
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