no vtec after doing b16 swap. i have checked the vtec solnoid and connections at/to ecu. computer throws a constant 21 as soon as you start the car. any ideas?

 

Where did you pin it in at the ECU?
Use a volt-meter to check continuity from A8 to the solenoid

http://rywire.com/store/faqdes...46d72

 

the pressure, solnoid, knock sensor and 2nd o2 sensors have to be wired in for a b16 swap.. Like he said just check your a8 pin... im not even sure if my vtec works i think its just really quite?? How are you sure it doesnt work?

 

yeah i made a sub harness and wired in the second o2, knock, vtec oil press, and solenoid. i also have checked continuity to all of these from sensor to ecu and double checked for correct pin location. What i don't understand is why it throws 21 as soon as car is started unless it is different from obd1 cars in which from my experiences 21 is only thrown after car reaches vtec engagement rpm.

 

did you try re-setting the ecu yet?

 

yep

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by roma’s GSReg6 &raquo;</TD></TR><TR><TD CLASS="quote"> unless it is different from obd1 cars in which from my experiences 21 is only thrown after car reaches vtec engagement rpm.</TD></TR></TABLE>

My experience too. Really odd. If the wire checks out, and the solenoid is good (12v+ test) then replace the ECU.

 

I'll try another ecu but i doubt thats it.