Mazda 323,Mazda 626 & Mazda 929 Whether the compact 323, the mid sized 626, or the full sized 929, these vehicles remain very popular even though production has stopped.

626 revving itself up and down, and up and....

Old May 2, 2010 | 02:14 PM
  #1  
r197's Avatar
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From: Carlisle
Unhappy 626 revving itself up and down, and up and....

Hey folks .

Just wondering if someone could help me out?

I have a 99, 626, 2.0 which is revving up and down between 400 - 1200RPM while idling until it eventually cuts out. It also cuts out when I'm coming to a stop (revs stay steady if in gear until the car stops).

I've changed the basic things I thought it could have been - spark plugs, air filter. Have also used some injector spray which was sprayed around the throttle body and into the air intake.

I have been told by a mechanic that the problem won't get any worse - but he doesn't know what's causing it!

It's not a major issue to me, just really annoying!!

Any help would be appreciated
 
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Old May 5, 2010 | 01:30 AM
  #2  
Sirob's Avatar
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From: Odessa, Ukraine
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If your transaxle is manual such a problem may be caused by two sensors which are like two-wire ON / OFF switches. One of them is located on clutch pedal (but it may not always be available and it is possible that you just do not have it) and another – neutral sensor in the transaxle.
 
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