Fast idling when cold
#1
Fast idling when cold
My 2002 Protege5 (manual tranny, 46k miles) is idling at 2000 rpm when the car is cold. When the car is warmed up, it idles normally again. The engine check light came on and I took it to the auto parts store. The computer diagnostic showed the code for a vacuum tube leak. However, I hear no general sucking sounds under the hood.
Anyone have a thought on this perplexing issue?
thx,
Steve
Anyone have a thought on this perplexing issue?
thx,
Steve
Last edited by Stevemazda; March-28th-2006 at 07:27 PM.
#2
I'm inclined to agree with the computer then. I don't know how to determine the specific location of the 'leak' though... If someone would please share, that'd be great, as I suspect a vacuum leak on my 78 Caprice. LOL
#6
I'm no expert by any means, but a few weeks ago my daughters Accord was throwing a CEL and everything semed to be running OK except for a slightly elevated idle. I checked for leaks and found her PCV valve was loose and almost all the way off.
I tightened it, reset the ECU and no CEL since.
I tightened it, reset the ECU and no CEL since.
#7
Just replace all your rubber vacuum lines, they aren't expensive and most likely will solve your problem, over time they crack in places and it might not be enough to make a noticable sound with all the other noises going on, but I would say that with your year car there probably is several cracks in your lines, don't forget to get the codes cleared
#8
I live in Ottawa Canada, I have fast iddling too on a 01 Protege SE. Thats usually when its bellow -10C outside. Goes to around 2000 then progressivly drops. Started using a block heater and the idle dropped to around 1000 on cold days. When it warms up im usually around 300-500.
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Glazedham42
1st Gen Protege/323/GLC
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April-23rd-2002 09:20 PM
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