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nicostar

gts4 manual RB20det ECU installed to rwd gearbox and auto engine loom?

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will installing a gts4 manual RB20det ECU to rwd gearbox and rb20det auto engine loom cause any issues? any known sensors needed different from rwd rb20dets?

currently I have an ecu (likely auto) with an auto engine loom (if they are different from manual looms), but its wired to a rwd rb20det and gearbox and starts perfectly fine. I got a gts4 manual rb20det ecu but it doesn't start the engine, if I get a lucky start I have to hold the gas pedal but once I let go it will not start again at all. Would I have to change the cas timing? tps readjusting? idle air screw readjust?

Edited by nicostar

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Post up the number of your original ecu  - someone may be able to tell you if its an auto one.

In any case I would use the one that works. You may be able to get it Nistuned later if you start modding.

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Shouldn't have to change anything. They are the same thing. Auto ECU will happily run a manual. GTS4 ECU is same same as RWD. If the GTS4 ECU is not running your engine, it would suggest that there is either something wrong with it, or perhaps it is already Nistuned or otherwise reprogrammed for different sized injectors/AFM or something.

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17 hours ago, KiwiRS4T said:

Post up the number of your original ecu  - someone may be able to tell you if its an auto one.

In any case I would use the one that works. You may be able to get it Nistuned later if you start modding.

i don't have the number for the ECU I am currently using, got it like that. I don't mind if that one is auto or manual it is working fine, the second ecu I got is gts4 but as my backup ecu, it is not working.

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17 hours ago, GTSBoy said:

Shouldn't have to change anything. They are the same thing. Auto ECU will happily run a manual. GTS4 ECU is same same as RWD. If the GTS4 ECU is not running your engine, it would suggest that there is either something wrong with it, or perhaps it is already Nistuned or otherwise reprogrammed for different sized injectors/AFM or something.

thanks GTSBoy, I really just wanted to have a backup ecu. I bought this gts4 manual one from ebay, turns out it is no good. I see no signs of nistune in it at all. It can be nistuned but I'm not ready for that yet, I just want to ensure I have a backup ecu, and if I do get the nistune chip the ecu should at least be working, in this case it isn't.

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