MD. Celica
New member
Are the 89661-20750 and 89661-20751 ecu's the same hp? Or is the 89661-20751 ecu 240hp or are they both 225hp? Please let me know! Thanks Nate
rrain3288":27pi345o said:They should both be jdm 225hp ecu's
BriinumsBo":28v7ohye said:follow up of the discussion here: http://alltrac.net/phpBB2/viewtopic.php ... ht=#329563 (i personally think it`s in the wrong forum)
i have ST185 1990 european model (151f/Torsen)
my original ECU is european part. 89661-20770
so I got a 89661-20751 ECU from a friend (JDM st185) 1990. its plug'n'play. the weird thing - it didn`t throw out any error codes, but my speedo isnt working, so it should show something? it does on my original ECU.
well I didn`t feel anything on the butt dyno. maybe a bit crazy fast boost/power/rpm kick from 8psi to 13psi (I have HKS EVC, so maybe its not related). i will get an iphone with dynolicious software and test out both ecus several times to see if there is a difference in power output.
1) i`m searching for ECU pinout for my stock ecu 89661-20770, but have had no luck. can anyone help me out?
2) whats up with the speedo error not showing up?
3) how is the EGR controlled, does ECU control this or just monitors?
4) what is different in the JDM ECU? is there any point in swapping them in? are the fuel or ignition maps different?