I have a 96 integra ls that has a b18c6 motor with 1 wire coming out of the vtec solenoid and i have done a continuity check from that wire to a blue/red wire at the plug for the ecu. the ecu is a chipped p28 with a jumper harness also. the cel is showing a 1 code for heated o2 sensor and a 21 code for the vtec control solenoid. i swapped the solenoid off my buddy's b16b motor and was still giving me the cel and not working. after looking up various diagrams can I run a wire from the solenoid itself straight to the a4 pin on the ecu? also, my buddy's solenoid as a extra 2 pin plug coming off his whereas mine only has the 1 wire. if anyone can help i would really appreciate it.