Question about 1997 Mazda 626
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Posted on Jan 02, 2017
SOURCE: code 1507 idle air control
This code is saying that the engine speed is below spec, the idle air control motor controls the engine speed, if the speed was higher then you may have a few problems but since it was lower the only problems i've dealt with in this case is the valve is bad and also clean the throtle body, this valve is located on the throtlebody, hope this helps, also heres a picture of the valve to help you locate it.
Posted on Oct 24, 2010
SOURCE: looking for part number
PLEASE BE INFORMED THAT I WANT TO FIND MY MAZDA CAR ELECTRONIC CONTROL UNIT, THE BELOW (5K) CODE WAS MY ORIGINAL BOARD:
BMV9 18 881C
MAZDA LANTIS 323
BVV6 (1995 SERIALS)
Posted on Jul 12, 2008
My '91 626 did the same thing. I tested the throttle position sensor, and it was good so that wasn't it. The other likely culprit is the Idle Speed Control valve, or Idle Air Control valve, which is a $500 part new (more than I paid for the whole car). I pulled one off a 626 at the salvage yard and got it for 3 bucks, put it on (it's an easy DIY, just 4 philips screws holding it to the intake manifold), however I can't be sure that solved the problem, since I haven't run the car much since then. It would seem the most likely cause, tho, and a cheap fix if you go used. Other possibilities: O2 sensor or Mass Air Flow sensor?
Posted on Nov 28, 2009
Firstly, congratulations to you on identifying the Trouble Code. This code relates to the Heated Oxygen Sensor (H02s)
The oxygen sensors supply the computer with a signal that indicates a rich or lean condition during engine operation (i.e. fuel/air metering).
This input information assists the computer in determining the proper air/fuel ratio. A low voltage signal from one or more sensors indicates too much oxygen in the exhaust (lean condition) and, conversely, a high voltage signal indicates too little oxygen in the exhaust (rich condition).
The oxygen sensors are threaded into the exhaust manifold and/or exhaust pipes on all vehicles.
A faulty oxygen sensor due to loose connections, bad grounds, high resistance in the circuit, or opens in the circuit can cause the following symptoms.
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Posted on Jan 27, 2010
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Posted on Apr 14, 2010
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