the numbers are 37520p2ta11 and 1170122270 and Z4? any help would be great im new to these cars.

 

99-00 Civic Si

 

what is the ecu number for a b18c5? thanks for the help

 

37520p2ta11

thats how you know its for a 99 - 00 si.

heres for future reference

 

ok i just got this car its a 00 si with a b18c5 normal bolt ons but the ecu is a factory Si ecu it runs and drives great but i know it should have alot more power when i test drove it it was fast but when i got it home i noticed that the pass kick panel was half off and the ecu was just sitting there so i think the guy i bought it from took out the right ecu and put the factory Si ecu back in.

what ecu should i get to get the best out of this motor.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by typeRSi &raquo;</TD></TR><TR><TD CLASS="quote">ok i just got this car its a 00 si with a b18c5 normal bolt ons but the ecu is a factory Si ecu it runs and drives great but i know it should have alot more power when i test drove it it was fast but when i got it home i noticed that the pass kick panel was half off and the ecu was just sitting there so i think the guy i bought it from took out the right ecu and put the factory Si ecu back in.

what ecu should i get to get the best out of this motor. </TD></TR></TABLE>

why dont you try an OBDII GSR ECU, since it would make sense to use the ECU that goes with the engine. or you could convert to obd1 and use any number of chippable OBD1 ECUs and tune as needed.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 91civicDXdude &raquo;</TD></TR><TR><TD CLASS="quote">

why dont you try an OBDII GSR ECU, since it would make sense to use the ECU that goes with the engine. or you could convert to obd1 and use any number of chippable OBD1 ECUs and tune as needed.</TD></TR></TABLE>

Because the OBDII GSR ECU isn't the ECU that goes with the B18C5 motor.

ITR ECU = P73
GSR ECU = P72

 

just run a obd2b-obd1 jumper harness and get a chipped out gsr computer for it... a p72 ecu

 

I wouldn't even bother finding a P72, the intake runner butterfly control will just have to be disabled anyway. Find a P28, chip it and tune it, and be done.

 

thanks for all the help. ill prob end up getting a p72. i think after that im gonna sell it if your interested let me know.