I just got a gsr mototr but I don't have the ecu.Will any b motor ecu work just like the gsr ecu?

 

no

 

If you are running a complete stock setup. Then get the stock gsr ecu.

 

Just a gsr ecu will support the secondaries.

 

You can always remove the secondaries from the GSR manifold and use a different ECU if you want, such as a p73, or convert to OBD1 for use with a p28.

It wont run as it should, but nevertheless, it can be used.

 

He said "any b motor" ecu which leaves out the P28. Doubtful he has a P73 either. I'm assuming he is going to try a P74/p75 which won't work very well at all.

Just use the P72 OP

 

Only a P72 will work the IAB system. The year also matters.