Swaped b20vtec in my '91 obd0 crx. Was driving about a week with everything working fine. Yesterday vtec stoped working. Don't know what was the cause. I washed the car before that happens and ran into one big gap on road. I can't remember any more happening before.
code 23 is on. i am running without knock sensor. Could that be because of bad fuel or spark plugs? any ideas?

 

Im not sure what code 23 is but check your ground wire for your vtec solinoid....

 

check all wiring! Make sure ecu pinouts are still "in"!

edit: oh yeah cel 23 (knock sensor) it should have no effect on vtec unless your obd1.

 

Is there anyway you could post a howto for your engine swap...I am about to begin my engine swap and am also using a B20

 

Problem solved. Battery ground wire was loose.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 13oclock &raquo;</TD></TR><TR><TD CLASS="quote">Is there anyway you could post a howto for your engine swap...I am about to begin my engine swap and am also using a B20</TD></TR></TABLE>

Well, it was b16a &gt; b20b swap. First swap on this car was d16 &gt; b16. U can find the answers here (HT) on all questions u'll have on this swap. I did the same.