Hi, on my 1990 rx7 i have de error code 33 solenoid valve - port air bypass. What is this solenid valve? Where is it? And what'is doing? What's can cause this error message? Thank!

This is my link for finding the ecu code and the procedure. Thanks!


http://home.rmci.net/panther/89_91ecu.htm


Benoit Garneau

 

This valve is used to direct air pump air to the exhaust ports when the Switching Valve is directing air to the Cat (Split Air). All these valves are a part of the Air Control Valve (ACV), the big multi-purpose valve. The solenoid screws into the valve, and has an electrical connection directly to the ECU. Wires are Black/red and Black/white. It is either disconnected or the valve itself went bad. I do not believe one can be purchased seperately, though, you may need to purchase a whole new ACV. It is necessary only for emissions. Hope this helps.

Irv, Keith's dad

 

check the computer if no burn marks try reseting it