Toyota » RAV4 » 1997 Toyota RAV4 » Questions

Q&A

Ask Your Question

1997 Toyota RAV4

 

Question: what should the voltage be at the EGR VSV connection

Question

sophie19920, 2.0L 4 Cylinder, Bath, NY, August 17, 2011, 09:17
 Rookie

PO 401 NEW VSV shows no vacuum. EGR line off Q port attached to
vacuum pump ing. on o vac. with ign. off will some time hold 15 in. when ing is turned on it looses vacuum. Replaced VSV & modulator. no changes. I have been able to find the suggested voltage @ the VSV plug. po401 (2 codes)

1 Answer
Answer It
Flag This

  • Answer #1

    dandd August 18, 2011, 12:53
    Profile_thumbnail
     Master

    I would go to this link and follow this article. I wrote this as I do Emissions Diagnosis and Repair at a Gold Shield Station in Calif. A P0401 is somewhat common on Toyota and they can be stubborn to resolve. The passages have to be 'perfecto' clean.

    http://repairpal.com/OBD-II-Code-P0401-Toyota

    Reply
    Flag This
Related Items:
  • PO401 low flow
    replaced VSV & modulator. With EGR tube off and vacuum pump attached modulator port Q,with ing. on no reading. Sometimes I have vac. at Q when ing. is off,wnen turned on I loose Vac. I think maybe ...

    Q&A > Toyota > 1997 Toyota RAV4

What are Top Shops?
  • Verified
    Quality Work
  • Guaranteed
    Fair Prices
  • Happy
    Customers
Top Shops Near You
Northwest Automotive, Inc.
(206) 641-9132 | 2.2 mi | Profile »
Northwest Automotive, Inc.
(206) 257-2970 | 6.3 mi | Profile »
Answer Ranks

This week's top 10

1 globalhelper 6 FREDDY BLUE
2 pushrod 7 gearhead89
3 ziptie12 8 tdtoolbox
4 ChevyASE 9 wenyan
5 csubak30 10 ebans777