1992 Mazda 626 revs

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PHILG041
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  • 3 POSTS
Engine Performance problem
1992 Mazda 626 4 cyl Front Wheel Drive Automatic

hi my wifes car has just had another motor fitted and we now have a problem with revs ,,,,,, on idle it will run at around 1500rpm then as it heets up it nearly stall at about 250rpm then it will jump to around 2 grand then drop back to 1 g then down to neer stall then up again this happens with a slight hesitation at times 00 it also when neer stall it seems as if it is getting 2 much fuel as it smells rich ,,,,, it starts no prob and u can excelerate without any problem it has stalled on the road and took a few trys to start seems like it flooded
Jun 4, 2010 at 4:05 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Clean out the idle air control valve and EGR valve then test throttle position sensor
Jun 4, 2010 at 4:43 PM
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PHILG041
  • MEMBER
  • 3 POSTS
thanks will try these sugestions and get back to you with a report ....................phil..........
Jun 4, 2010 at 7:23 PM
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