Toyota RAV4 Forums banner

1 - 6 of 6 Posts

·
Registered
Joined
·
24 Posts
Discussion Starter #1
Alrighty, so this morning my cel popped up. Checkerld herbout and it cane out as thebloveky p0401 code. Now i have done a lot of research (reading and youtube vids) both here and other sites, so it seems to be narrowed down to a few items to check, clean or replace. One thing i couldnt actually clarify is an all out egr delete in the 4.1 rav. Ive seen where some people mention doing a delete, but haven't performed it. I found one guy who completed it, but his information was vague and i couldnt compare it to someone elses experience.
So my big question is, have you performed an egr delete? Do you have information on how to perform such an operation on one of our trucks?
 

·
Registered
Joined
·
609 Posts
Any other codes?
Sometimes the year of your Rav4 is important in the diagnostics.

Could be something as simple as a disconnected vacuum line.
 

·
Registered
Joined
·
24 Posts
Discussion Starter #4
I do not have to worry about emissions where i am located. The rig is a work vehicle not intended for regular highway use.
My rav is a 97. There were no other codes thrown. I did check around for disconnected or cracked vac lines. But i couldnt reach the vsv.
I recently bought the vehicle and i also found that a code can be cleared and then show up after 50 ignition start cycles. The code couldve been there and i wouldve been none the wiser upon purchasing it.
 

·
Registered
Joined
·
609 Posts
My 99 manual claims, 2 trip detection logic. The 97 manual may be different.
The manual also defines a trip. Here are the test steps:

(1) Connect the OBD II scan tool or TOYOTA hand-held tester to the DLC3.
(2) Start and warm up the engine with all the accessories switched OFF.
(3) Run the vehicle at 60∼80 km/h (38∼50 mph) for 3 min. or more.
(4) Idle the engine for about 2 min.
(5) Do steps (3) and (4) again.
(6) Stop at safe place and turn the ignition switch OFF.
(7) Do steps (2) to (5) again.
(8) Check the READINESS TESTS mode on the OBD II scan tool or TOYOTA hand−held tester.

If COMPL is displayed and the MIL does not light up, the system is normal.
If INCMPL is displayed and the MIL does not light up, run the vehicle steps (2) to (6) for several times and check it.


HINT: INCMPL is displayed when either condition (a) or (b) exists.

(a)The system check is incomplete.
(b)There is a malfunction in the system. If there is a malfunction in the system, the MIL will light up after step (7) above is done.

(2 trip detection logic)


 
  • Like
Reactions: phen01
1 - 6 of 6 Posts
Top