1g NA AUTO with 1g Gsx ecu

[RED AWD GSX]

Ok so here's the deal, all I need to know is will my 1g GSX M/T ecu work in a 1g 2.0 NA AUTO GS, and what will I have to do to make it work, the auto is a 92 and my ecu is a 93. Thanks for any input.

 

[stars]

Not that hard to get too, swap them out an see, if they start and run then your in luck. Should be no reason why it would not work as long as you have 1G parts you know are good you should be o.k. because they all interchange. Someone will correct me I'm sure. I used an 92 ecu in my 90 onetime and I couldn't tell any difference but hey it worked.

 

[hypergenesis]

No it wont work the ECUs are set for different power ranges, drivetrains, sensors. An awd Turbo Ecu wont work in a auto non Turbo

 

[Arthris]

Well they will plug in. But the GSX ecu has to have a knock source. As far as i know if you get that figured out all that will happen is that you will hit load rang 6 and stop. The timing maps will be lower and less resolution. But technically it could

 

[bryanwheat]

Not going to work. The turbo cars use a different maf sensor that 1 extra wire, a knock sensor, and low impedance 450 injectors. You will have to swap the turbo maf, injectors and resistor pack in to get it to run as well as installing and wiring in a knock sensor.

 

[Arthris]

Not going to work. The turbo cars use a different maf sensor that 1 extra wire, a knock sensor, and low impedance 450 injectors. You will have to swap the turbo maf, injectors and resistor pack in to get it to run as well as installing and wiring in a knock sensor.

Oh my bad. Probly shoulda thought more about it. Hey just get a Megasquirt II and call it a day

 

[bryanwheat]

Not that hard to get too, swap them out an see, if they start and run then your in luck. Should be no reason why it would not work as long as you have 1G parts you know are good you should be o.k. because they all interchange. Someone will correct me I'm sure. I used an 92 ecu in my 90 onetime and I couldn't tell any difference but hey it worked.

You have to swap the tps signal and maf reset wires in the harness to use a 90 in a 91-94 or vice versa. The car will not run for shit if you don't swap them.

 

[stars]

He said he had a ecu from a turbo car and wants to install it on a non turbo car, will it work? I'm tellin ya if he plugs it in it is going to work. Idk why you want him to do a bunch of extra work swapping pins until at least he tries the swap. Then after he tried the swap if he had problems then will have to look further into problem and then do pin swapping if needed. At the very least he may have to make a pin adjustment to the ecu. You can't say something will not work without at least first giving it a try. I have seen many times things that shouldn't work end up actually working. If he is in a bind with money what does he have to loose by just trying the swap. At least give him some encouragement.

 

[steve]

He said he had a ecu from a turbo car and wants to install it on a non turbo car, will it work? I'm tellin ya if he plugs it in it is going to work.

Define work?

The NA cars use much smaller injectors that the turbo ECU are programmed for. Running a turbo ECU will likely start a NA but it will be very lean once the car warms up and the coolant enrichment stops.

The compression is different so the timing maps will be way off giving too much timing for the higher compression engine. Thankfully the missing know sensor will cause the turbo ECU to seriously retard timing in a limp mode and it might not cause it to detonate if you tried to drive that way.

I think I have a couple rebuild NA MD166255 ECUs left over from when I was repairing them, if you need a replacement.

 

[Arthris]

The timming would be lower in the GSX ECU. I did find the MAF's are the same for N/T and turbo. It could work with 450's and a resistor for the knock sensor. Would it be advisable? Probly not as it would lack power due to timming maps being different.

 

[stars]

Work means plug it in see how it operates the vehicle. If it runs fine warmed up, drives fine, no cel then you will know if it is plausible to do? You just might as well get the correct ecu then no worries, if that is what you want? So what's the alternative? Plug that one in and see if it works, if it don't work then you have to modify something right? Or get the correct one and then you know it will work.

 

[bryanwheat]

The timming would be lower in the GSX ECU. I did find the MAF's are the same for N/T and turbo. It could work with 450's and a resistor for the knock sensor. Would it be advisable? Probly not as it would lack power due to timming maps being different.

The maf sensors are NOT the same from turbo to non turbo. The turbo maf has a bigger passage thru it, and has one more pin in the plug. You would have to add the maf reset wire also ALONG with the turbo maf sensor. For the price of buying a turbo maf sensor, knock sensor, 450 injectors and a resistor pack you can buy 2 or 3 non turbo 2.0 ecu's. The best idea for the guy would be to sell the turbo ecu and buy a non turbo ecu.