ok my buddy has a 91 crx, with a lsvtec in it and has a boomslang obd0 to obd1 conversion harness, someone else wired it up. but we cannot figure out how to get vtec working... his tach doesn't work and i have been researching aton,

where is the wire from the ecu to tach at?? what location in the ecu? i have looked at several pinouts and non of them say tachometer, is it called something else?

what wire from the dizzy would make voltage (rpm) go higher for vtec to work?

anyone else have this problem and know if i am looking into the wrong things??

thanks aton for any help

 

anyone?