i know you can bypass your oil pressure sensor by tapping ur oil pressure sensor wire into your vtec solenoid wire. could this possibly solve a code 21 (vtec spool solenoid) if it is indeed my oil pressure sensor causing this code?

 

The VTEC spool solenoid is the solenoid that actuates VTEC, there is a small spool valve inside the VTEC solenoid body. If you have this code, there are three possible causes:

1: Solenoid is blown, and is not accepting commands from the ECU.
2: The Spool valve is jammed in the body due to oil coking/debris, use brake cleaner or another solvent to clean it out. This can cause condition 1.
3: You have a wiring problem between the solenoid, and the ecu.

A bad VTEC oil pressure switch will cause VTEC to not activate, but it will throw a completely different code. (Code 22)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slowcivic2k &raquo;</TD></TR><TR><TD CLASS="quote">The VTEC spool solenoid is the solenoid that actuates VTEC, there is a small spool valve inside the VTEC solenoid body. If you have this code, there are three possible causes:

1: Solenoid is blown, and is not accepting commands from the ECU.
2: The Spool valve is jammed in the body due to oil coking/debris, use brake cleaner or another solvent to clean it out. This can cause condition 1.
3: You have a wiring problem between the solenoid, and the ecu.

A bad VTEC oil pressure switch will cause VTEC to not activate, but it will throw a completely different code. (Code 22)</TD></TR></TABLE>

well i replaced the spool solenoid and im still getting it, so i guess i gotta look at my wiring