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View Full Version : ls vtec turbo not engauging vtec



big mac
03-23-2009, 12:37 PM
i have 99 civic ex. it has a ls vtec swap done to it. only that vtec isnt poping. car has a obd2 to obd1 conversion harness. i checked the soliniod and its good. so i think that the probnlem might be electricle. i have the pin out diagram for the p72 thats in there now. but i dont know how the go back to the harness. and when you do hit it the check engine light comes a bit after where vtec hits
any help is good guys reps will be given

big mac
03-23-2009, 12:52 PM
bump help yall

scttydb411
03-24-2009, 08:54 PM
chipped ecu? tuned? cel comes on immediately when vtec hits or when you get near redline? does the cel stay on after hitting vtec? have you jumped the ecu to see what codes you have?

list a complete rundown of the setup from engine to engine management for your turbo setup.

RedEj8
03-24-2009, 10:34 PM
Is there actually an oil feed line running to the head?

AnTi-PooN
03-25-2009, 05:33 AM
did you see what code it's throwing?

wrekonize
03-25-2009, 06:46 AM
i wouldn't trust those jumper harness wire vtec straight to the ecu as well as the knock and pressure.....

big mac
03-25-2009, 12:40 PM
i got it guys the oil pressure wire and vtec solinoid wire were touching under the dash and making contact