Question about 1991 Toyota Land Cruiser

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1991 Toyota Land Cruiser - Idle air control valve problem

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Posted on Jan 02, 2017

  • 94 Answers

SOURCE: 2004 Toyota Land cruiser key programming

you need to take it to the dealer so they can program the key to the car which requires there software. hope this helps

Posted on Mar 09, 2009

  • 2 Answers

SOURCE: 1991 toyota land cruiser will start but turns off

i bought a new ignition key the engine will start but stop immediatly. i took the key into toyota and had it chipped on the computer and now it works perfect. i think it is the chip on your key that is faulty.

Posted on Apr 18, 2009

  • 173 Answers

SOURCE: horn on 2002 toyota land cruiser randomly goes

take the battery of your remote control see if this takes care of problem my be a difect remote control

Posted on Sep 23, 2009

  • 4793 Answers

SOURCE: 1991 Land Cruiser owner's &/or repair manual

try ebay.....

Posted on Feb 11, 2010

  • 672 Answers


replace the IAC valve to resolve this issue.

Posted on Jun 04, 2010

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2 Answers

Will not idle when cold. On gas its OK when hot. On petrol rough running and stalls at idle when hot

The Idle air control valve ( IAC ) Gets dirty over time and needs cleaned from years of use. Remove and clean carbon from it, Also clean throttle body with throttle body cleaner. At most auto parts stores Advanced, Auto zone, ETC.

May 12, 2016 | 1997 Toyota Land Cruiser

1 Answer

1991 Toyota will not maintain idle

could mean a lot of things take it to the mechanic so they can do some computer reading.

Mar 23, 2014 | 1991 Toyota Land Cruiser

1 Answer

The hiace 1kz engine takes long to start an when started it shuts off

Possible IAC valve bad, idle air control valve. Its located on throttle body with coolant hoses and electrical connector on it.

Feb 22, 2014 | 1997 Toyota Land Cruiser

1 Answer

Why my toyota land cruiser 1994 has low idle when i put to D and R but it normal when i put to P and N ?

This sounds like you have an idle air control valve fault. When in park and neutral the engine is effectively disengaged from the 'drive' and is therefore not churning transmission fluid. When 'drive is engaged the torque converter is pushing fluid against a static impeller and this take effort from the engine. Ordinarily the ECU should compensate for the extra load imposed on the engine output by increasing the amount of air through the idle air control valve and by increasing the injection cycle by an equivalent amount. The potential good news is that the 'repair' may not cost you very much at all. Remove the air ducting between the air filter box and the throttle. With a cloth and WD40 or carb choke cleaner spray simply clean the throttle body interior of all oily residue. Clean the throttle plate and then rotate with finger pressure and clean as far as you can behind. There are two types of idle air control a) a motor opens the throttle plate by a tiny amount by acting on the end of the throttle plate shaft b) a valve controlled passage leads around the throttle plate which opens fractionally at idle. If your engine is the former type then the interior clean should be enough. If your engine is the latter locate the passageway leading off from the air duct side of the throttle plate and the return passage on the inlet plenum side of the throttle plate. This passageway needs to be clean. The valve that controls the air flow through this passage is held onto the throttle exterior by a couple of bolts and has an electrical connection to it. Disconnect and remove the valve. Clean it thoroughly and then reinstate everything as before. The above should help resolve the issue

Nov 11, 2010 | 1994 Toyota Land Cruiser

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

Prado high rpm

just besides the air filter over the air intake there is small screw rotate it anticlockwise and see if the rpm comes down or else change the iac (idle air control motor) immediately.

Nov 12, 2008 | 1996 Toyota Land Cruiser

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