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Help Question On Stagea Ecu

marcuste

By marcuste,
in Engines & Forced Induction

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marcuste Rookie

marcuste

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Hi all

Firstly I just need a simple question answered. I have an R32 with a RB25det in it, manual GB, dunno if the gearbox is 32 or 33. I have been having problems with it running well. I bought it like this BTW. The ecu has the number 23740 0V310 on it. I believe this is a Stagea ecu, and it's a series 1. Is this correct? Also am I correct in saying that all series 1 Stageas are Auto and this ecu could be half my problems for the very bad running? I'm in Saudi Arabia and bought the car from the UAE. Obviously the people before me had no idea as the wiring is an absolute mess in a lot of places.

The car idles very smoothly but totally lacks power all the way through the rev range. It is showing 5psi boost increasing to 7psi up towards redline, but just sooooo sluggish. I just did the timing back to 15deg adv at idle, and also regapped all plugs, and added a walbro 255 fuel pump intank as the previous setup was disgusting to say the least. So still like this and now im wondering whether the ecu is the culprit. Any suggestions please!!!!

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Duncan Grand Master

Duncan

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could be part of the problem. yes that is a stagea ECU, and in fact it is the "special" hard to replace one that was only in production for 1 month according to FAST. I have the same little bastartd in my stagea which made changing to a power FC very difficult.

the stagea runs less aggressive cams than gtst so that might be part of the problem. also the stagea ECU is much less tolerant of mods than the skyline one, it goes to a safety cutout where it runs super rich with only a little extra boost in it.

Duncan Grand Master

Duncan

Posted
Posted

the fact its for an auto will make no difference, but like I said, the mapping is definately different to the gtst. if you aren't afraid it might be worth changing. and put in some gtst cams as well they will wake it right up at the top end.

marcuste Rookie

marcuste

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the fact its for an auto will make no difference, but like I said, the mapping is definately different to the gtst. if you aren't afraid it might be worth changing. and put in some gtst cams as well they will wake it right up at the top end.

How can I make sure it's not just the ecu out of a Stagea? Is there any differences to the engines externally i can look for? So you are saying that the auto part does not really matter even with the manual gearbox? Would an r34 gtt ecu be a possible swap as I saw the pin layouts are close if not the same?

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