I just did an h22 swap into my 93 del sol. I have it tuned to delete knock sensor on a p30 map. The only check engine light it is now throwing is 21... which is vtec solenoid. It does that at 5k when it should engage... I have put three different solenoids on it and it still does that. I cant figure it out at all... some help with this would be great.

 

Did you run wires to the vtec solenoid?

 

I have rewired vtec yes... It did work the first night I swapped it in, and that was two weeks ago, but randomly quit working. So I rewired it again with better wire and it still doesnt work.