1997 Toyota Camry error code P0401

asierra77 · **Joined:** Thu Aug 13, 2009 11:16 am **Posts:** 3

I own a '97 4 cyl. Toyota Camry displaying error code P0401. I've replaced the EGR Valve and the EGR Vacuum Valve, but the code is still being displayed. I've also check the hoses for cracks and possible obstructions, but see no evident problems.

Any ideas as to what could be causing the error code to remain?

Sponsored Links · **Joined:** 29 Jun 2004 08:12 pm **Posts:** N/A

asecmt · **Posted:** Thu Aug 13, 2009 12:43 pm

what vacuum valve? the one under the intake or the back pressure valve. are the ports clean?

asierra77 · **Joined:** Thu Aug 13, 2009 11:16 am **Posts:** 3

Back pressure EGR vacuum valve was replaced, which sits right next to the EGR valve, which was also replaced. The port was briefly checked, but not cleaned. Should I remove the EGR valve and attempt to clean the port. My idea of cleaning the port is taking a shop vac and trying to suck up the excess carbon build up? Are there any other suggestions or a better way to do this?

asecmt · **Posted:** Fri Aug 14, 2009 10:52 am

With the enging at idle if you manually open the egr valve and the engine stalls then the ports are not the problem. A part called the VSV for the egr is a common problem on a toyota. It is a electrical solenoid that supplies vacuum to the back pressure transducer that you already replaced. It is located under the intake and real pain to get to even with a lift.

asierra77 · **Joined:** Thu Aug 13, 2009 11:16 am **Posts:** 3

Thanks for the information. It sounds like this issue is more than I can handle. I may have to take it into a shop for repairs. Any ideas on the cost of completing this repair?

jeff compton · **Posted:** Fri Aug 14, 2009 1:56 pm

Depends on there dorr rate, parts supplier, labour quoted etc! It can vary from state to state city to city.

1997 Toyota Camry error code P0401

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