i have a 1990 civic with a jdm sir b16. i just got the motor in and it keeps cutting out at about 7200 rpm's. other than that it seems to run good, any ideas?

 

Had any check engine lights? Do you know what ECU you have?

 

sounds like you got the sohc computer, it should rev till 8200 fuel cut

 

8100

 

the check engine light comes on at around 3000 rpm's and syays on untill its turned off, the ecu is a pr3

 

holy **** a newbie that asked a real question... congradulations, welcome to honda-tech you should learn a lot here.

The only thing i can think of is that your ecu is potentially bad or there is a simple wireing problem you have to sort out

 

my b16 redlines at 8100 but fuel actually cuts at 8250 on the autometer, could vary tach to tach i guess

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by redline32 &raquo;</TD></TR><TR><TD CLASS="quote">my b16 redlines at 8100 but fuel actually cuts at 8250 on the autometer, could vary tach to tach i guess</TD></TR></TABLE>
fuel cut is higher than redline.

 

I have an Si and mine redline hit at 8200, hope this helps you. But it does sound like something is wrong with your ECU.