IACV CEL P0505 . Do our cars have an idle adjust screw?

A forum for the legendary Nissan Pathfinder and Infiniti QX4.
longhornsqx4
Posts: 587
Joined: Wed Jan 14, 2009 9:39 pm
Car: 2001 Nissan Pathfinder 3.5L VQ35DE

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My car (01 qx4 3.5L) recently started idling a litle lumpy, so after some research I thought maybe the IACV was clogged or dirty, so I removed it by simply undoing the 2 screws, cleaned with carb cleaner and reinstalled. Out a week later I get a P0505 code

P0505 Idle Control System Malfunction

My car idle at about 500 on idle and is lumpy, but once warmed settles @ 650-700 and car seems smooth.

Is there an idle screw I can turn it up a bit?

Any help on what caused this problem would be appreciated
Modified by longhornsqx4 at 3:45 PM 4/18/2009


Buzzman
Posts: 2079
Joined: Fri Feb 02, 2007 2:35 pm
Car: 2016 Lexus RX 350
2023 Kia Stinger Elite V6 AWD.

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longhornsqx4 wrote:Is there an idle screw I can turn it up a bit?
In a word, no.Idle adjust screws went the way of the carburetor. Everything is controlled by the ECU.

longhornsqx4
Posts: 587
Joined: Wed Jan 14, 2009 9:39 pm
Car: 2001 Nissan Pathfinder 3.5L VQ35DE

Post

There are MANY fuel injected cars that come with an idle screw

A part # for the IACV for a pathfinder (aparently its cheaper) would be apprecaited to, hope i dont have to replace the thing though


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