its running on stock ecu, problem is i have spare o2 sensor from my 32 rb26 engine (tried to swap it to see whats the difference) then only found out but the thread & size is different.
normally would remove this & replace it with wideband sensors if using aftermarket ecu.
but since im running this stock, just need to buy the sensor coz the existing one is faulty.
dont have a r33 or r34 sample to compare.
like i said, i wanna order it but they asking me which year or chassis # before Amayama give me a price.
so back to my original question, anyone got any link to find out engine # year make?