Hello everyone, on 4-20 I picked up a 93 del sol si with a d15b8 bottom end and some vtec top end (havent checked which head it is yet). The tach goes crazy when I hit vtec, bouncing passed 9k and not working at all. However it functions fine when not in vtec. The car speedo is also reading high, and is brutally annoying. It's a 5 speed, any ideas?

 

How does the car run? Any noticeable signs of driveability problems?

 

Distributor

 

^^ to be exact ignitor

Any cel's?

 

Post the head and ECU codes, as well as the CEL codes.