1G eprom turbo ecu on n/t??

[Julia]

I was wondering if a 1G eprom ecu for a turbo will work in my car it is currently a n/t but the head was from a turbo. Any Ideas??

 

[marcmsj]

did it come off a manual or auto tranny car?

 

[Julia]

sorry that info probably would have been helpfull it came off a five speed manual

 

[marcmsj]

i'm not an ecu expert so we'll have to wait for one of those guys to answer...

i would think that the only difference would be in the fuel trims, which would make it unsuitable for your car.. but i could be wrong.

i'll try to do more homework...

 

[griff]

First off, it doesn't matter if the ecu is from a 5spd or auto. All ecu's are the same for auto and 5spd. Auto's have a tcu in them for their tranny.

I do know that you can use a n/t ecu in a turbo, but never heard anyone try a turbo ecu in a n/t, i would suspect that you can. The difference with the n/t ecu's is that it has no output for the stock boost guage, and no recognition for knock. I would say yes you can use it, but if you want to wait for someone to tell you for sure, then that's all good.

 

[marcmsj]

hmm, i thought it did matter if it was auto or manual... guess not then

but yeah, there are a lot of guys on here that know plenty about ecu's so let's wait for one of them to answer for sure and if any modification (if any) would need to be done to the ecu.

 

[steve]

First off, it doesn't matter if the ecu is from a 5spd or auto. All ecu's are the same for auto and 5spd.

Not correct, The 1G AT has smaller injectors and turbo so there are sigificant differences in the code that impact how the engine runs. The PCBs used are common but it's what goes on the board than makes the difference.

Auto's have a tcu in them for their tranny.

Correct, the TCU is a seperate computer to control the trans.

I do know that you can use a n/t ecu in a turbo, but never heard anyone try a turbo ecu in a n/t, i would suspect that you can.

The big question is why?. It doesn't just plug in and work 100%.

The difference with the n/t ecu's is that it has no output for the stock boost guage, and no recognition for knock. I would say yes you can use it, but if you want to wait for someone to tell you for sure, then that's all good.

The NT wiring harness doesn't have pins on the connector for the boost gauge, knock sensor, FP solenoid, BCS, ABS, or MAF Reset and a NT ECU doesn't use them. The NT ECU doesn't have IC104 or IC106 (no FP solenoid, BCS, or MAF reset)and some of the pins are retasked on a NT ECU. It looks like pin 105 is used to switch the O2 Sensor heater on a NT and that's the BCS on a Turbo ECU.

Putting a Turbo ECU in NT car will cause throw a CEL for the missing Knock Sensor and pull timing all the way back. The O2 Sensor heater won't work like it should, the fuel will be really lean since the ECU expects 450cc injectors instead of the NT's 240cc and basiclly run poorly.

I've put NT 2.0L ECU's in the car for testing but I have to do really non-optimal things to the SAFC to get them to idle and I wouldn't even back out of the driveway without a the ECU having knock sensor support.

In general I can't understand any reason for putting a turbo ECU in a NT car and if you did the car would run poorly until you blew it up from not enough fuel.

Steve

 

[Julia]

Not correct, The 1G AT has smaller injectors and turbo so there are sigificant differences in the code that impact how the engine runs. The PCBs used are common but it's what goes on the board than makes the difference.

Correct, the TCU is a seperate computer to control the trans.

The big question is why?. It doesn't just plug in and work 100%.



The NT wiring harness doesn't have pins on the connector for the boost gauge, knock sensor, FP solenoid, BCS, ABS, or MAF Reset and a NT ECU doesn't use them. The NT ECU doesn't have IC104 or IC106 (no FP solenoid, BCS, or MAF reset)and some of the pins are retasked on a NT ECU. It looks like pin 105 is used to switch the O2 Sensor heater on a NT and that's the BCS on a Turbo ECU.

Putting a Turbo ECU in NT car will cause throw a CEL for the missing Knock Sensor and pull timing all the way back. The O2 Sensor heater won't work like it should, the fuel will be really lean since the ECU expects 450cc injectors instead of the NT's 240cc and basiclly run poorly.

I've put NT 2.0L ECU's in the car for testing but I have to do really non-optimal things to the SAFC to get them to idle and I wouldn't even back out of the driveway without a the ECU having knock sensor support.

In general I can't understand any reason for putting a turbo ECU in a NT car and if you did the car would run poorly until you blew it up from not enough fuel.

Steve

I take that as a no right? j/k thanks for input glad I didn't put it in first and then find out and btw.....does anyone know where I can get a N/T ecu?

 

[griff]

That's my bad on saying there's no difference between auto and 5spd ecu's. When i first got my auto talon, before i drove i already had a 14b, 450's, afc, and a 5spd ecu. So naturally that would make no problems with running the 5spd ecu, since i had basically all stock parts from a 5spd, and an afc to control the a/f ratio.

Thanks for clearing it up Steve.