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1999 Mazda b3000 manual idle problem


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Mazdab3000user
New User

Jan 21, 2013, 6:08 PM

Post #1 of 4 (2284 views)
1999 Mazda b3000 manual idle problem Sign In

Hi all I've been through the post and have cleaned out my iac and the idle went back down after I started the car. However when I took it for a drive and shift into gears my idle jump from 1500 to 3000 and would return back downbetween 1 and 2. Is there anything else I should check. Thankyou


(This post was edited by Mazdab3000user on Jan 21, 2013, 6:12 PM)


Discretesignals
Ultimate Carjunky / Moderator
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Jan 21, 2013, 6:42 PM

Post #2 of 4 (2262 views)
Re: 1999 Mazda b3000 manual idle problem Sign In

If you unplug the electrical connector from the valve with the engine idling, does it stall or idle really low?





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on Jan 21, 2013, 6:44 PM)


Mazdab3000user
New User

Jan 21, 2013, 8:19 PM

Post #3 of 4 (2250 views)
Re: 1999 Mazda b3000 manual idle problem Sign In

It does not stall it runs low


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Jan 22, 2013, 5:58 AM

Post #4 of 4 (2218 views)
Re: 1999 Mazda b3000 manual idle problem Sign In

If it idles low after unplugging the IAC during the high idle situation, that probably means the engine controller is commanding the higher than normal idle.

It could be an input problem. Are there any trouble codes stored in the engine controller.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.






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