Acura RSX, ILX and Honda EP3 Forum banner

fuel pressure test

718 Views 0 Replies 1 Participant Last post by  ska8terpunk84
Can anyone help me on how to do a fuel pressure test? I'm having trouble finding a gauge that fill fit on the valve at the fuel rail. I want to know this because I keep getting a P0420 code for catalytic effeciency below threshold. I've replaced my cat and everything and it still occurs. I read in a Haynes book that a rich fuel mixture may trigger the code. Any help would be greatly appreciated.
1 - 1 of 1 Posts
1 - 1 of 1 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.