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Discussion Starter · #1 ·
i picked one up today and just relized that i got one from a scort with cruse control which mine doesn't have and i don't plan to put one in. my car also doesn't have EGR. will i have any problems when i put in the new pcm?
 

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PCM... you're talking about the main computer that hides above/behind the glovebox right? It won't matter.
 

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Discussion Starter · #3 ·
ok. i'm also swapin for a sport cluster. will i still need to splice the wiring?
 

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If the PCM (aka ECC) is from a car with an EGR, I think it may also be expecting to see a difference in the signal from the O2 sensor when it tells the EGR valve to open/shut.. So the Check Engine Light might come on to tell you the EGR circuit is not responding. That may not be a problem, but where I live (Fairfax VA) the emission check insists the Check Engine Light not be 'On', or the car fails the emissions test. Otherwise I dont think it would matter to how the car runs.

About the Sport Cluster....
If the car you have doesnt have a tach in it, and you want to put in a cluster that does have a tach, you have to change the wires around that go to the 3 plugs on the back of the cluster - they are mosty ALL different! Plus you would need to run a wire from the one 'empty' terminal on the EDIS module (by the driver's side strut tower) up to the tach 'pin' on the cluster having the tach in it.
It is doable, but its probably a few hours of work.
Both of these topics are covered in the forums, maybe in the HOW-TO forum, or maybe in the "Tech & Repair" forum.
If I was going to swap a cluster, I would get the Service manual for the car I had, and the Service Manual for whatever year the cluster came from; as the wiring may not be the same for all 2nd gen. years.
 

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Discussion Starter · #7 ·
ok. i'll see how it all works and let yall know.
 

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Discussion Starter · #8 ·
so i finally put it in yesterday but i don't have the egr equipment. the check engine light came on, ran the diagnostic test and atleast 10 different trouble codes came up. i didn't have my book with me so i don't know what the codes were. but i was able to drive 35 miles to olympia with no problems. i put the old pcm back in but no codes were there. i put the old maf sensor back in also for that pcm which actually doesn't seem restrictive at all. if i do decide to put the 94 sensor back in i might try the adjustable fuel mixture controller from escortfocus.com
http://escortfocus.com/html/fuel_adjuster.html

also i've decided to get a tach from them cuz they also have a tach driver that will pick up signal from the coil pack.

let me know what u think.
 

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Discussion Starter · #9 ·
disregard the last post as the trouble codes could be for the egr sensor and solenoid. but if i have surging problems from the HO head that i'm gonna be swapping from the 1st gen gt's including the MAF sensor housing and PCM from the 93-95 scorts then i'll get the adjustable fuel controller.
 

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juggalo said:
...they also have a tach driver that will pick up signal from the coil pack.

let me know what u think.
You don't need that, it's a complete waste of money. I can't remember what slot it is but you have a place on your EDIS-4 Module that doesn't have a wire on it, most of the time when you don't have a tach, you just need to strip a wire and poke a hole in the protective rubber peice and push that wire through it, free tach signal.
 

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Discussion Starter · #11 ·
ok. i know there's wiring instructions on here somewhere to swap in the sport cluster. i have 2 clusters. one from a GT and one from an LX. i don't remember which one's which. will either one hook up just fine after wire splicing?
 

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Discussion Starter · #12 ·
i pulled up trouble codes the other day and other than EGR equipment not yet hooked up it pulls up trouble codes for shift solenoids 1, 2, 3, and the torque converter clutch circuit. it still shifts fine but is it possible that the valve bodies for the 93-95 r better tuned than the ones for 91-92? it also brought up the transmission fluid temperature at maximum voltage but i think that's only because i ran the test with the car cold. it also came up with the BOO circuit failure/not actuated but i didn't run it in KOER test mode. the e-brake was on but i only hope that was why it brought that code up.
 

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Discussion Starter · #14 ·
i already swpped the pcm for the bigger MAF sensor cuz the old one caused surging problems above 60. my only concern right now is intalling EGR equipment, swapping the valve body and TCC solenoid all from the 93-95's to get rid of those trouble codes. and puttin in the sport cluster is already in the works.
 
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