Murse Posted August 19, 2012 Report Share Posted August 19, 2012 I know I can google search it (and I have) but I'm looking for input from actual techs. The wifes 2003 Accord Lx with the 4 cyl. Is throwing 2 codes P2646 and P2647. What's the part and part number that I need. Skool me on what I need to do. Quote Link to comment Share on other sites More sharing options...
staywide8 Posted August 19, 2012 Report Share Posted August 19, 2012 Oil level/change first, if it stays on honda news say rocker arm pressure switch. That's just using honda's interactive network, no tech asked. I can ask tomorrow to confirm. Quote Link to comment Share on other sites More sharing options...
Murse Posted August 19, 2012 Author Report Share Posted August 19, 2012 I've changed the oil. One thing I've noticed is that it's going through oil like there's no tomorrow. It's not leaking and it's not burning oil. Plugs look great and are grayish in color. I guess I need a switch. Did it show a part number? Quote Link to comment Share on other sites More sharing options...
Rocky31186 Posted August 19, 2012 Report Share Posted August 19, 2012 part# 37250-PNE-G01 The engine light could have been on since its been loosing oil / burning it. Those pressure switches dont like low oil or sludge. Quote Link to comment Share on other sites More sharing options...
Murse Posted August 19, 2012 Author Report Share Posted August 19, 2012 Ahh ok Quote Link to comment Share on other sites More sharing options...
Murse Posted August 19, 2012 Author Report Share Posted August 19, 2012 Any idea on whats going on with the oil? Quote Link to comment Share on other sites More sharing options...
SinisterSS Posted August 20, 2012 Report Share Posted August 20, 2012 (edited) Honda service new straight from the Honda IN: Replace VTEC Oil Pressure Switch for DTC P2646, P2647 NOTE: This article applies to ’03–05 Accord L4s, ’03–05 Elements, and ’02–05 CR-Vs. Got a vehicle in your shop with either of these DTCs? • DTC P2646 (VTEC oil pressure switch circuit low voltage) • DTC P2647 (VTEC oil pressure switch circuit high voltage) Replacing the VTEC oil pressure switch (P/N 37250-PNE-G01, H/C 6737217) usually fixes the problem. If it doesn’t, then press on with normal troubleshooting. Edited August 20, 2012 by SinisterSS Quote Link to comment Share on other sites More sharing options...
Murse Posted August 20, 2012 Author Report Share Posted August 20, 2012 Thank you guys for the help!! This is why I love CR! Quote Link to comment Share on other sites More sharing options...
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