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Toyota 4runner showing p0505 and p0442 codes

Codes p0505 and p0442

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Posted on Jan 02, 2017

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GARYca
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SOURCE: P0505 IDLE AIR CONTROL SYSTEM\r\n1998 Toyota Land

replace the IAC valve to resolve this issue.

Posted on Jun 04, 2010

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duane_wong
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SOURCE: 2001 Toyota Sequoia is showing a P0505 and PO420

P0505 Idle Control System Malfunction

IACV or Idle Air Control Valve if equipped is malfunctioning.

P0420 Catalyst System Efficiency Below Threshold (Bank #1)
The Catalytic converter is not working up to par in Bank#1.

I think this will point you in the right direction..



Posted on Jul 16, 2010

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1 Answer

Codigo 5356


I don't know where you got it from. obdII codes are usually...P0442 for instance.

Apr 08, 2014 | 2001 Toyota 4Runner

1 Answer

I have a 2001 Toyota 4Runner and the CEL came on and also The VSC & Trac off light came on. Put it on a diagnostic scanner and the codes p0171 & p0442 were given. Please help.


check the gas cap rubber for cracks, if you leave the vehicle running when you fill the tank this can also happen, or if the cap is not on straight, the vacuum will not be present and can cause the light.

Sep 20, 2013 | 2001 Toyota 4Runner

1 Answer

Code p0505 for toyota camry


p0505 is isc idel speed control ac valve /trottle valve sticking

Feb 22, 2011 | 1998 Toyota Camry

1 Answer

Check engine light on. The codes are P0420 catalyst efficiency and P0505 idle control system. What do I need to do to fix this??


You need a catalitic converter p0420. Possible iac motor p0505...need to diagnose this recommend dealer

Oct 05, 2010 | 2000 Toyota Camry

2 Answers

2001 Toyota Sequoia is showing a P0505 and PO420 error code; how do you correct these issues.


P0505 Idle Control System Malfunction

IACV or Idle Air Control Valve if equipped is malfunctioning.

P0420 Catalyst System Efficiency Below Threshold (Bank #1)
The Catalytic converter is not working up to par in Bank#1.

I think this will point you in the right direction..



Jul 16, 2010 | 2001 Toyota Sequoia

1 Answer

P0505 IDLE AIR CONTROL SYSTEM\r\n1998 Toyota Land


replace the IAC valve to resolve this issue.

Jun 03, 2010 | 2003 Toyota Land Cruiser

2 Answers

Dtc 1442 and 1446


P1442
The code actually has another character in front of it, most likely a P (Powertrain) code as they're most common, although it could also be a B (Body) or C (Chassis) code. So it's likely P1442 and it's description is Evaporative Emission Control System Leak Detected. That code is specific to Toyota vehicles, although it seems nearly identical to the generic code P0442. This error pertains to the emissions system in the car. You now have the choice of either taking the car to a qualified technician or you can try a few troubleshooting steps yourself. If you're not mechanically inclined, I would recommend you change the gas cap to a brand new Toyota one (not a cheap aftermarket one), reset the code and see if it comes back. If the code returns there are additional steps you can take. Take a look at this P0442 article for other ideas.

May 18, 2010 | 2006 Toyota Sequoia

1 Answer

02 4Runner 3.0 showing service code 300. Replaced


Replace all your plugs, po300 code is random misfire which could absolutely be caused by bad gas causing detonation. Try an octane booster and gas stabilizer when parked for long periods.

Sep 12, 2009 | 2002 Toyota 4Runner

2 Answers

Engine check light and vsc track off


2003 Toyota 4Runner - just noticed the Check engine light was on flowed by the VSC TRAC and TRAC OFF lights stay. Any Solutions?

Jan 17, 2009 | 2003 Toyota 4Runner

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