i just swap a jdm itr motor in my 94 hatch, im having problems with vtec, it kicks in 2 or 3 times but after that the check engine light comes on and vtec stops working ,even when it works it loses power after 6,500rpm i conected all the vtec lines to the ecu and im running a p28 chipped ecu with stock itr injectors and an ls fuel pump. i also have b16a2 cams in there.help!

 

what code is it throwing?

 

17 and 21

 

why would u put b16 a2 cams in a jdm itr?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b16racer23 &raquo;</TD></TR><TR><TD CLASS="quote">17 and 21</TD></TR></TABLE>

These are the reasons your vtec is not working.

17 is the speed sensor. Your ECU has to detect your speed before engaging vtec.

and 21 is the VTEC solenoid. You probably have a bad connection or faulty solenoid. I would check the wiring to the A4 pinout using a digital multimeter to verify the connections.

For VTEC to run properly, you must clear those codes.

 

my cams got stolen while my moter was out, do u think the cams would efect the way vtec is working

 

naw it s just the b16 cams a little too small for the itr. itr have higher lift and duration u basically losing power by putting in the b16 cams