I guess this question is directed towards Alex and maybe Nauman or whoever has done it.

If I swap out the auto ecu for the 5spd ecu to make the conversion complete, what about the whole nissan imobolizer thing with the keys? How do I reprogram all my keys to respond to the new ECU? Is this something I can do or do I have to take it to Nissan to do?

I know I shouldve checked the FSM but I dont have access to it right now, I know it mentioned quite a few times in there about reprogramming the Imobolizer when you repalce the ECM. I dont want to end up buying it, replacing it, then realizing the keys dont work, put the auto ecu back in and now those dont work either.

Dixit

 

I dont even think there is a difference between the 5spd and the Auto ECU... I do know definately that swapping the ECU will not effect the NATS system or the VIS negatively. You will have to go to Nissan to have the keys reprogrammed after the swap though... you cant get around that. It will cost about $80 to get all 3 of your keys done. I've unfortunately had to have my keys reprogrammed a few times until my VIS went bad and then I had to replace it. Good luck...

Deac

 

Damn, see the only thing is that Alex and Nauman just pointed out that if I leave the auto ECU in there, I will get a SES light because the ECU will be looking for the auto tranny. Not a big deal, except that when a real code comes through, I gotta make it a habbit to check the sum bish everyday or something. All I need is for the code to come and dont check it for about one week and the next thing I know its too late and I already did the damage.

Dioxit

 

according to the esm, when you replace the ecu, the keys must be programmed for the immobilizer... You would have to go to a dealer for that.

 

Oh yeah, just got some bad news about this. According to Jeff at maximum tuning this wont work. He told me not to bother to try. He said the pin outs are not the same on both ECUs or something else is different cause he did this and the car ran like shiet and wouldnt rev past 4krpm. He had to put the auto ecu back in. And yes he even had the keys reprogrammed. I just got off the phone with him on this.

Not sure why this would be, but Im going to have to check the FSM for this, but I will take his word and not bother on the change. Just going to have to see how to FRIG the two codes I will end up getting.

Dixit

 

So NOBODY that has done an auto->5spd conversion has swapped to a manual ECU?

Dixit - I'm sure with enough digging into the FSM it will only be a couple wires different. However, there are MANY differences in the ECUs and I doubt you can mix them. Jeff may have had a mismatch between fed-cali spec ECU, tcs or non-tcs, or even 2K vs. 2K1.

 

Just a FYI on some of the variances in ECUs I've found between the years:

99
Elec Cont Unit (ECU), (under center of dash), SE, MT, Calif, thru 9/98
Elec Cont Unit (ECU), (under center of dash), SE, MT, Calif, from 10/98
Elec Cont Unit (ECU), (under center of dash), GLE, Calif, w/traction control (TCS), thru 9/98
Elec Cont Unit (ECU), (under center of dash), GXE, AT, Calif, w/traction control (TCS), w/power driver's seat, thru 9/98
Elec Cont Unit (ECU), (under center of dash), SE, AT, Calif, w/traction control (TCS), thru 9/98
Elec Cont Unit (ECU), (under center of dash), GLE, Calif, w/o traction control; thru 9/98
Elec Cont Unit (ECU), (under center of dash), GXE, AT, Calif, w/o traction control; w/power driver's seat; thru 9/98
Elec Cont Unit (ECU), (under center of dash), SE, AT, Calif, w/o traction control; thru 9/98
Elec Cont Unit (ECU), (under center of dash), SE, MT, Fed, thru 9/98
Elec Cont Unit (ECU), (under center of dash), SE, MT, Fed, from 10/98
Elec Cont Unit (ECU), (under center of dash), GLE, Fed, w/traction control (TCS), thru 9/98
Elec Cont Unit (ECU), (under center of dash), GXE, AT, Fed, w/traction control (TCS), w/power driver's seat, thru 9/98
Elec Cont Unit (ECU), (under center of dash), SE, AT, Fed, w/traction control (TCS), thru 9/98
Elec Cont Unit (ECU), (under center of dash), GLE, Fed, w/traction control (TCS), from 10/98
Elec Cont Unit (ECU), (under center of dash), GXE, AT, Fed, w/traction control (TCS), w/power driver's seat, from 10/98
Elec Cont Unit (ECU), (under center of dash), SE, AT, Fed, w/traction control (TCS), from 10/98
Elec Cont Unit (ECU), (under center of dash), GLE, Fed, w/o traction control; thru 9/98
Elec Cont Unit (ECU), (under center of dash), GXE, AT, Fed, w/o traction control; w/power driver's seat; thru 9/98
Elec Cont Unit (ECU), (under center of dash), SE, AT, Fed, w/o traction control; thru 9/98
Elec Cont Unit (ECU), (under center of dash), GLE, Fed, w/o traction control; from 10/98
Elec Cont Unit (ECU), (under center of dash), GXE, AT, Fed, w/o traction control; w/power driver's seat; from 10/98
Elec Cont Unit (ECU), (under center of dash), SE, AT, Fed, w/o traction control; from 10/98
Elec Cont Unit (ECU), (under center of dash), GXE, MT, Calif, thru 9/98
Elec Cont Unit (ECU), (under center of dash), GXE, MT, Calif, from 10/98
Elec Cont Unit (ECU), (under center of dash), GXE, MT, Fed, thru 9/98
Elec Cont Unit (ECU), (under center of dash), GXE, MT, Fed, from 10/98
Elec Cont Unit (ECU), (under center of dash), GXE, AT, Calif, w/traction control (TCS), w/o power driver's seat; thru 9/98
Elec Cont Unit (ECU), (under center of dash), GXE, AT, Calif, w/o traction control; w/o power driver's seat; thru 9/98
Elec Cont Unit (ECU), (under center of dash), GXE, AT, Fed, w/o traction control; w/o power driver's seat; thru 9/98
Elec Cont Unit (ECU), (under center of dash), GXE, AT, Fed, w/o traction control; w/o power driver's seat; from 10/98
Elec Cont Unit (ECU), (under center of dash), GXE, AT, Fed, w/traction control (TCS), w/o power driver's seat; thru 9/98
Elec Cont Unit (ECU), (under center of dash), GXE, AT, Fed, w/traction control (TCS), w/o power driver's seat; from 10/98
Elec Cont Unit (ECU), (under center of dash), GXE, AT, Calif, w/o traction control; w/o power driver's seat; from 10/98
Elec Cont Unit (ECU), (under center of dash), GXE, AT, Calif, w/traction control (TCS), w/o power driver's seat; from 10/98
Elec Cont Unit (ECU), (under center of dash), GLE, Calif, w/traction control (TCS), from 10/98
Elec Cont Unit (ECU), (under center of dash), GXE, AT, Calif, w/traction control (TCS), w/power driver's seat, from 10/98
Elec Cont Unit (ECU), (under center of dash), SE, AT, Calif, w/traction control (TCS), from 10/98
Elec Cont Unit (ECU), (under center of dash), GLE, Calif, w/o traction control; from 10/98
Elec Cont Unit (ECU), (under center of dash), GXE, AT, Calif, w/o traction control; w/power driver's seat; from 10/98
Elec Cont Unit (ECU), (under center of dash), SE, AT, Calif, w/o traction control; from 10/98

2K
Elec Cont Unit (ECU), (under console), SE, MT, Calif, 16" wheels
Elec Cont Unit (ECU), (under console), GLE, Calif, w/traction control (TCS)
Elec Cont Unit (ECU), (under console), GXE, AT, Calif, w/traction control (TCS), ID 23710-3Y160
Elec Cont Unit (ECU), (under console), SE, AT, Calif, w/traction control (TCS)
Elec Cont Unit (ECU), (under console), GLE, Calif, w/o traction control
Elec Cont Unit (ECU), (under console), GXE, AT, Calif, w/o traction control
Elec Cont Unit (ECU), (under console), SE, AT, Calif, w/o traction control
Elec Cont Unit (ECU), (under console), GXE, MT, Calif
Elec Cont Unit (ECU), (under console), SE, MT, Calif, 17" wheels
Elec Cont Unit (ECU), (under console), GXE, MT, Fed
Elec Cont Unit (ECU), (under console), SE, MT, Fed, 16" wheels
Elec Cont Unit (ECU), (under console), SE, MT, Fed, 17" wheels
Elec Cont Unit (ECU), (under console), GLE, Fed, w/traction control (TCS)
Elec Cont Unit (ECU), (under console), GXE, AT, Fed, w/traction control (TCS), ID 23710-2Y960
Elec Cont Unit (ECU), (under console), SE, AT, Fed, w/traction control (TCS)
Elec Cont Unit (ECU), (under console), GLE, Fed, w/o traction control
Elec Cont Unit (ECU), (under console), GXE, AT, Fed, w/o traction control
Elec Cont Unit (ECU), (under console), SE, AT, Fed, w/o traction control
Elec Cont Unit (ECU), (under console), GXE, AT, Calif, w/traction control (TCS), ID 23710-3Y170
Elec Cont Unit (ECU), (under console), GXE, AT, Fed, w/traction control (TCS), ID 23710-2Y970

2K1
Elec Cont Unit (ECU), (under console), MT, w/17" alloy wheels
Elec Cont Unit (ECU), (under console), MT, w/o 17" alloy wheels
Elec Cont Unit (ECU), (under console), AT, w/traction control (TCS)
Elec Cont Unit (ECU), (under console), AT, w/o traction control

 

Can we say the '99 guys are SCREEEEEEW'd?

 

Could very well be, but Jeff is pretty smart in that area and pretty sure he put the right one in. I cant gaurantee it without asking him.

But planB is to now figure out what to FRIG.

Dixit

 

Dixit.. I finally replied to your email you sent me about the 5spd swap. sorry about the delay


°¨°º©[SuperCharged 2K1 5SPD Maxima GLE]©º°¨°
.::R.I.P. 7/26/03 - WRX STI/EVO VIII Coming Soon...::.
PMPN' 1994 Miata 5Spd - Turbo'd
F/S: Parting Out The Whole Car. Lots of Parts Still Up For Grabs!!!

 

I hear nothing but good things from Jeff, but I gave DAVEB a workout on breaking down what ECUs work with what. Honestly, without a VIN# and an IDENTICAL match, you'd be gambling.

Que?

 

Plan B, is to figure out a way to FRIG the ecu from knowing that the auto aint there anymore. I see something in the FSM about a communications line from the TCM to the ECU. Only thing is they dont say what is being sent on that line, Im going to have to figure out if its voltage, ohmage, or what it sends to the ecu to realize there is still a tranny there.

Then we gotta deal with Park Neutral Switch as well. Then we got a whole bunch of possible others like valve body crap and all that.

Maybe just pulling the bulb is PlanC and running the codes everyday to make sure nothing new has come in.

Dixit

 

electrical tape 0wnz j0o..... hehehe...

I would just keep the OBD-2 sensor semi-hard wired under your dash or something so you can monitor the codes and other vital info while you are driving... I don't think you have regular emissions checks to worry about down there either so you are good to go

 

F-that!

Just get a cheap Palm for <$50 and an OBD scanner. Leave the Palm connected at all times on your dash.

BTW, what is "FRIG"?

 

Something like this:
http://www.autotap.com/products.html

 

Actually Alex and Nauman I already have the Harrison OBDII http://www.ghg.net/dharrison/obdscan.html

Got it connected to the palm and yes it basically semi hardwired. I dont have it on the dash, I just pull it out the armrest and hook it up and watch live data like Coolant Temp, AirIntake Temp and other things I keep track of since I rebuilt the turbo setup to see what the effects have been.

Yes I can check it everytime i drive the car, just a pain you know?

Oh "FRIG" is basically slang for "Make it Think". Like Manipulate the ECU to believe the tranny is there. FRIG it? you know? ahhah

Dixit

 

Yeah, just 3M velcro that bad boy to your dash and check codes while your car is warming up and the turbo timer is shutting her down.

Never heard of FRIG. Oh well.