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Location:
ACT
Registered:
February 2003
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1JZ idle speed problem
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Thu, 21 October 2004 11:51
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On start up sometimes my 1j will idle a lot lower then normal.
It does not seem to affect running or boosting at all but when you come to a stop it will idle at at least half its normal speed. Then after a while it will go away and idle normally.
Its just annoying because it is like the engine is asleep and as soon as you put your foot on the pedal it wakes up and takes longer to get going if that makes sense.
It is a JZX81 conversion to MX83 Cressida.
Thanks!
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Location:
Sydney
Registered:
May 2002
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Re: 1JZ idle speed problem
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Fri, 22 October 2004 01:12
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i got a spare idle control valve you can have fairly cheap... pm me
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Location:
Canberra
Registered:
May 2002
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Re: 1JZ idle speed problem
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Fri, 22 October 2004 06:23
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Hi, had the same problem! Clean your Idle Speed Control Valve. Pop it off, and give it a good clean with throttle boby/carby cleaner. The Subaru cleaner is the GO, it foams up and gets into every crevice!
regards Chuck.
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Location:
ACT
Registered:
February 2003
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Re: 1JZ idle speed problem
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Fri, 22 October 2004 08:57
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Thanks Chuck! Will give it a whirl this weekend.
mx83toy I will let you know if it needs replacing. Thanks for your offer. Did you end up selling your car?
Simon
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Location:
Canberra, ACT
Registered:
March 2003
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Re: 1JZ idle speed problem
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Fri, 16 September 2005 02:30
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I'm thinking about installing a Megasquirt ECU on a 1JZ.
Has the idle valve you guys are talking about got 3 pins or 4? IE is it a PWM valve or a stepper motor one?
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Location:
Perth
Registered:
October 2003
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Re: 1JZ idle speed problem
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Fri, 16 September 2005 04:36
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It will have 4 pins.
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Location:
sydney
Registered:
March 2003
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Re: 1JZ idle speed problem
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Fri, 16 September 2005 06:25
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another thing to do after cleanin it is
take neg batt terminal off to reset ecu for a minute or so
then refit terminal
then run engine at 1500 rpm for 4 or 5 minutes
this will actually make the idle motor screw all way out and then all way in and find its limits
hopeuflly this will then help abit
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: 1JZ idle speed problem
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Fri, 16 September 2005 06:29
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| sideshow wrote on Fri, 16 September 2005 14:25 |
then run engine at 1500 rpm for 4 or 5 minutes
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This is with your foot holding it at that rpm?
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Location:
sydney
Registered:
March 2003
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Re: 1JZ idle speed problem
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Fri, 16 September 2005 06:48
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nar i usually just put a very thin cable tie or something similar under the throttle stop to hold throttle slightly open
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: 1JZ idle speed problem
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Fri, 16 September 2005 06:49
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Cool
Will try.
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Location:
sydney
Registered:
March 2003
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Re: 1JZ idle speed problem
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Fri, 16 September 2005 07:17
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this is only for std toyota ecus dont know if it works on any other crap hehe
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: 1JZ idle speed problem
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Fri, 16 September 2005 07:22
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Yeah, stock ecu.
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