so i had a d15b in my 90 ef si, and i put a b16a(2 gen) and i converted my single cam harness to obd1. i had problems but i fixed most of them now i can drive it but my brand new altinator wont charge my brand new battery. so i checked for a short by getting my multimeter and puting it on 20volts and puting one of the cable on my ground cable that i disconected and the other cable on the ground terminal while the positive cable was on the positive terminal, and it reads anywhere fron 14.78-18.79 volts. so i started pulling fuses and i found the wen i pull the igition fuse it goes from 18.79 to 16 volts. fuse 12,8,4 (http://img37.imagevenue.com/img.php?..._122_861lo.JPG) i pulled all of these fuses and pulled the ignition fuse out of my fuse box under the hood and it will go to 0.00 volts. idk wat it could be i have a cel code for tps,o2, speedo doesnt work but the milage part works, wont pop vtec, runing p28 with obd0-obd1 jumper. o and i have a rev limit at 1500 wen the gas is parshally pressed.i think it has todo with my tps.other then that it will go all the way to 8k

 

Bump for answer

 

do you have the alternator wire from the engine harness connected at the main underhood fuse box?





VTEC will not work if you have codes showing at the ECU

 

Yea my wire is in the right place

 

ok so i got vtec to work all i did was changed my p28(chipped but still for singlecam) and i put on my gsr ecu with s200 that i was going to save for wen i go turbo(it came off of my friends turbo b16 hatch). all the check engine lights i get is for iacv now

 

So you were trying to run a dohc motor on a sohc tune? o_O

 

yea it ran great besides not poping vtec