 |
 | Home | Contact Us | FAQ | Search & Site Map | Link to Us |
 | Sign In | Join | Other 45 Sites in Network |
Car Forum / Driving, Maintenance, Tuning / Maintenance and Repair / December 20061998 Rav4 Problem Code P0401 ( EGR insufficient flow )
Hello, Anyone know George Ganann ? Or does anyone know what was the problem with his 1998 Rav4. I just purchased a 1998 Rav4 less than a month ago. Problem Code P0401 ( EGR insufficient flow ) turned on my check engine light. When I went to check out the EGR it tested fine. I found the EGR modulator valve and the EGR VSV is new. Probably replaced by the previous owner before he gave up and traded it in. George Ganann listed the same problem in April 2005 (search 1998 rav4 P0401) but he never listed what the problem was???????? ???????? Can anyone help? Did George ever fix the car? Did I buy George's used car????????? THANKS Rob >Hello, Anyone know George Ganann ? Or does anyone know what was the problem >with his 1998 Rav4. I just purchased a 1998 Rav4 less than a month ago. [quoted text clipped - 5 lines] >???????? Can anyone help? Did George ever fix the car? Did I buy George's >used car????????? THANKS Rob These are usually the egr control vacuum solenoid. Typically intermittent and test good. Don www.donsautomotive.com PS Thanks a lot Don and Comboverfish for your help >>Hello, Anyone know George Ganann ? Or does anyone know what was the problem >>with his 1998 Rav4. I just purchased a 1998 Rav4 less than a month ago. [quoted text clipped - 7 lines] >Don >www.donsautomotive.com > Hello, Anyone know George Ganann ? The world is not small enough to make this a likelyhood. > Or does anyone know what was the problem > with his 1998 Rav4. I just purchased a 1998 Rav4 less than a month ago. [quoted text clipped - 5 lines] > ???????? Can anyone help? Did George ever fix the car? Did I buy George's > used car????????? THANKS Rob How did you determine that these two parts are new? Anyhoo, as chance would have it, I replied to the George Ganann post with helpful diagnostic tests and an explanation of the not-so-accurate 1998 Rav4 code P0401. Click here to see: http://tinyurl.com/y25qmw Toyota MDT in MO Hello Guys, When the code P0401 came up, I decided to give it a tune up, cleaned the throttle body the whole nine. When I checked out the EGR, it appeared to have been very recently removed. I noticed the base of the EGR was cleaned up and the bolts that hold the pipe to the base are new. The EGR modulator valve looked new and thru a mirror the red bolt that holds the VSV and the VSV also looks to have been replaced (all tested fine). They look new! !! So I went to the Toyota dealer to get a NEW EGR modulator valve and a VSV. In there parking lot I changed the modulator valve and cleared the DTC from the computer. The ride home (half hour ride) the DTC P0401 never came on. I noticed a little oil from the bottom hose of the modulator. The hose that goes to the base of the EGR. Is oil normal? Do you think it's possible that a bad PCV valve was fouling the modulator valve? PS Thanks a lot Don and Comboverfish for your help, looks new and is new, well, another lesson I try to remember! Thanks!! Rob >> Hello, Anyone know George Ganann ? >The world is not small enough to make this a likelyhood. [quoted text clipped - 15 lines] > >Toyota MDT in MO > I noticed a little oil from the bottom hose of the modulator. The hose that > goes to the base of the EGR. Is oil normal? Do you think it's possible that a > bad PCV valve was fouling the modulator valve? The hose at the bottom of the modulator (when looked at in it's installed position) is the large backpressure hose off of the exaust port on the EGR valve. There is no reason for this to accumulate oil internally. External oil could come from a valve cover gasket leak. > PS Thanks a lot Don and Comboverfish for your help, looks new and is new, > well, another lesson I try to remember! Thanks!! Rob You're welcome, Toyota MDT in MO |
Reply to this Message |
 Sign In
 Join
 My Latest Posts My Monitored Threads My Blog My Photo Gallery My Profile My Homepage Start New Thread Enable EMail Alerts Rate this Thread
|
©2008 Advenet LLC Privacy Policy - Terms of Use
This website includes both content owned or controlled by Advenet as well as content owned or controlled by third parties.