Code PO420 & PO505 1999 acura cl 2.3
08-10-2011, 01:08 AM
#1
1st Gear
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Code PO420 & PO505 1999 acura cl 2.3
Code PO420 came on 9 mos ago so i know i need to replace my CAT convertor but now PO505 code came on. does anyone think they are connected in any way? I need a smog soon
08-10-2011, 01:20 AM
#2
Lead Footed
Not sure what the PO505 is off the top of my head, but the PO402 isn't necessarily a bad CAT. Run a bottle of RXP thru a 1/2 tank and retest. Many people pass the emissions test using RXP.
http://www.rxp.com/gaskicker.htm
Ruf
http://www.rxp.com/gaskicker.htm
Ruf
08-10-2011, 11:45 AM
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Whats up with RDX owners?
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P0505 - Idle control system malfunction.
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