96 engine into 99

[klipschaudio]

I have a 99 eclipse, my engine blew so I got a 96 one, the only difference is the cas as far as im concerned, I checked the wiring diagram, and it shows 96 and 99 cas blue wire going to pin 88 on ecu, so I made my own little harness to go all the way to the other side of the 96 engine, car barely starts after 20 seconds and so i shut it down, something is wrong. I know the firing order is the same, they both had the 4123, so what is wrong?! The engine worked perfectly before I pulled it from this wrecked car and swapped it into mine, any suggestions appreciated. thanks

 

[mike96]

the firing order is the same sort of... you need to swap the plug wires. as far as the ECU is concerned the CAS is now on the wrong side of the engine and because of that is basically sending the signal back wards. you will more than likely have to swap injector wires around as well. read through the EVO8 ecu in a 2G thread and i believe there are a couple of threads about putting the 99 ecu into a 96 car that will help.

 

[klipschaudio]

man im in over my head i think the link that you"re talking about is http://www.dsmtuners.com/forums/tuning-engine-management/335924-98-ecu-into-95-car.html the info is probably there but i dunno, I should have probably just swapped my 99 head on, now the engine is in the car, and I didnt want to mess with it cause it had such nice compression DSM!!! WHHYYY!!!!

 

[mike96]

just swap the plug wires at the coils, take both wires from one coil and move them to the other and visa -versa. that should at least get you up and running. some people still get what feels like a mis-fire when they are driving after doing the swap, some of them have fixed it by swapping the injector wires around others could not get it fixed. the only other fix is to either take the 99 CAS off of your old head and put it on the 96 motor which i believe will require you swapping the exhaust cam as well, or swapping to the older style (preferably the black top) Cam sensor. just take your time and do it one step a time and you will get it figured out. start with the plug wires then if there is still a problem come back and let us know.

 

[klipschaudio]

sorry for the late reply my 1g dd broke so I had to fix it, go figure.... anyway. the ignition is split into 2 sections where the spark plug wires tap in, 4-1 and 2-3, I tried swapping the wires from 41 23 to 14 32, it does the same thing, then I swapped the 2 sets places on the coil, so I got 32 14, same thing, then I switched the plugs again in their sections, so i got 23 41, same thing, the car is trying to start but it like stutters, hard to describe... the engine came out of the the 97 talon, worked and started before I swapped it, same results on his ecu, I dont think the cas has anything to do with it no starting, i also tried swapping injector wires to 14 32 along with the coil, since they can reach at that point, noting, same thing, any ideas!!!...

And another thing I dont understand, the cars both had the same firing order, 41 23, as far as I know 95 had the reversed 14 32, 96-99 had 41 23, and thats how it was hooked up before the swap anyway, so whats up? The cas has 3 wires going to it, reb black blue, pos/neg/signal, both are diagramed out to pin 88 on the ecu, year 99 and 96, what is there to swap, theres only one signal wire for the cas....

so I'm thinking of just swapping my 99 head unto this 96 block if that will fix everything, I cant imagine doing the swap and still having the same problem!... makes no sense, i want this car to run already!

 

[gofer]

Do the basic "No Start" troubleshooting steps first, don't shrug your shoulders and throw your wrench and think its because theres a '96 engine in your '99. I removed my '97 head to replace the headgasket and then after I re-install the head I couldn't get it to start. I questioned my install but when I went back to the basics I found a fuel injector had gone bad, so you never know!

Quit wasting your time swapping your plug wires in every which way possible, its obviously not the problem if you did it the way Mike96 told you. Since your probably so turned around and backwards at how the plug wires should be heres a drawing, once you they are set like this DON'T move them. Don't swap your fuel injector wires, nothing changes on the wiring harness from the ECU to the fuel injectors.

This is a the 2g plug wire swap for a '95-'96 ECU with a '97-'99 CAS OR a '97-'99 ECU with a '95-'96 CAS.

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1. Check for fuel pressure at the rail.
2. Check for spark on ALL for cylinders.
3. Make sure its timed correctly.
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If your only getting spark on (2) cylinders check for voltages with a multimeter going to the CAS/CPS, see if the signal is there.

CAS Testing:

1. Disconnect the sensor and measure on the engine harness side with the key in the "ON" position.
   • BLK (Pin 1) - Ground (0 ohms to ground)
   • BLU/RED (Pin 2) - 4.8v to 5.2v
   • RED (Pin 3) - 12v
2. If everything checks good with a multimeter plug the CAS connector back in and check voltages with the engine cranking.
   • BLU/RED (Pin 2) - 0.4v to 3.0v (If your reading 0v while cranking then the CAS is dead)

CPS Testing:

1. Disconnect the sensor and measure on the engine harness side with the key in the "ON" position.
   • BLK (Pin 1) - Ground (0 ohms to ground)
   • BLU/WHT (Pin 2) - 4.8v to 5.2v
   • RED (Pin 3) - 12v
2. If everything checks good with a multimeter plug the CAS connector back in and check voltages with the engine cranking.
   • BLU/WHT (Pin 2) - 0.4v to 4.0v (If your reading 0v while cranking then the CPS is dead)

so I'm thinking of just swapping my 99 head unto this 96 block if that will fix everything, I cant imagine doing the swap and still having the same problem!... makes no sense, i want this car to run already!

You can always run a '97-'99 CAS on that '96 motor the head is the same, you can even leave the '96 CAS bolted onto the head. Just pull all your '99 CAS parts from the passenger side of the head on your old motor and install them on the '96 head. Then disconnect whatever connector you made to plug into the '96 CAS plug and use the original connector you had. Of course you'll want to swap your plug wires back to stock if you install your '99 CAS...

 

[mike96]

so I made my own little harness to go all the way to the other side of the 96 engine

not trying to sound rude, but hows your solder work?.. a shitty solder joint or worse yet the good old fashioned twist and tape can cause all sorts of problems. i would try following the troubleshooting procedures that have been posted up and if that doesn't work then i recommend putting all the plug and injector wires back the way they were, then put the CAM sensor from your 99 engine on the 96 engine and try that... i just cant remember if it is the 1G's with the bigger bolts or the 2G's with the bigger bolt that holds the CAM sensor ring onto the camshaft...

 

[jeffo]

To run a 1995/96 motor with a 1997+ ECU I believe the correct injector firing order is 2-4-3-1, which is exactly reversed from stock. I think you will find that the car idles fine if you swap the injector wires at the ECU, Swap pins 1 and 14, pins 2 and 15.

 

[klipschaudio]

thanks for the input guys, I got the car started so Ill post my retarded mistake, gofer I followed your instruction and started with the spark, found that 2 are not firing, so I checked the voltage on the cam pins and found that they were reversed, ground to pos, pos to neg, i dunno how I swapped them like that, Im known to do some stupid mistakes I guess, but its all good Thanks for the clear advice gofer.
Mike, I used solder for the but connector on the harness, the receiving end is a female butt connector with a hollow tube and teeth, you crimp it unto the wire and it bites into it, so I believe its extra solid, I'll tape it nicely on top of it all and put tubing over it, bit it was done quality. Jeffo as far as idling goes I'm not sure it seems a little high but its probably the throttle cable position, if I notice the problem later or the driving issue Ill swap those pins, thanks for the advice.

Ok so my question is for the injector swap, if I used my 99 ecu the firing order is 14 32, and the car runs (actually its a 97 ecu, the car is 99), when I plug his ecu in firing order is 41 23, so would the injector swap pins be the same? Is swapping the pins same effect as swapping 1-2 to 2-1 and 3-4 to 4-3 in the engine bay? (The reason i wanna use his ecu is because mine resets every time and i cant pass emission, his might be good)

Thanks for the input and help everyone, I'm glad I didn't crack the engine open