Question about 2001 Mazda 626
Hi, my mazda 626 6 cylinder won't accelerate past 60 km ph when going up a hill, my husband thinks it's the fuel rail and says the fuel pressure is good, tranny is good, says there's no leaks, and can rev up the engine good from the engine, but my acceleration is poor and limited when driving the car. We put the engine analyzer on it and got a whole bunch of codes: P1506 P0171 P0113 P0175 P0108 P0106 P0102 P0122 P0340 P1506 P01409
He needs to check the fuel flow as well as pressure , All so a blocked muffler can have this affect
Posted on May 31, 2014
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Posted on Jan 02, 2017
SOURCE: When I drive my Mazda
Does your Mazda have a standard trans (clutch), or automatic.
If it's automatic, the tranny might be slipping, and if it's a standard shift the clutch may be slipping. Does the actual driving speed (not engine rpm's) seem to stay the same when this happens? If you are still traveling at the same speed even though the engine speeds up, it's your tranny or clutch. I don't think the timing belt and tensioner have anything to do with this. countrycurt0
Posted on Aug 07, 2008
one thing to check is rear engine mounting i have had a stone wedged in one and it causes a nasty noise when accelerating
Posted on Apr 17, 2009
Try unplugging your Mass Air Flow Sensor (MAFS) - you'll find it on top of the metal body immediately after the air filter. I went through an 18 month ordeal - replaced fuel filter, fuel pump, dropped fuel tank and cleaned it, ran 55 gallons of fuel injector cleaner through the system - nothing! After reading some blogs on this car/engine, gave the MAFS unplug trick a try. The car instantly corrected itself (when you unplug this sensor, the engine control module reverts to factory default, allows sufficient fuel into the engine for unitterupted performance.) However, if this corrects your problem, it's only a temporary fix. Run it about 3 days - it you notice soot in the tailpipe, the factory default is running too rich. Replace the MAFS.
Posted on Jun 02, 2009
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