Car Problem Reports
Mazda 626 Stalling and low engine idle due to bypass air control valve failure
Mazda 626 Problem
Engines Affected: 2.0L 4 Cylinder, 2.5L V6
Average Mileage: 116,911 mi (68,500 mi - 167,000 mi)
Visitor, 1997 Mazda 626, 2.0L 4 Cylinder, 68,500 mi
Runs great cold.... very rough idle when in gear warm ~500RPM- shift to neutral.. all is ok
Visitor, 1994 Mazda 626, 2.5L V6, 167,000 mi
Car runs fine when cold and warm, once it gets to hot, on faster acceleration and super slow driving (like parking) and at red light in gear (automatic) the engine starts roughing about. Sometimes it even stalls.
Cleaned spark-plugs and distributor, changed fuel filter, air filter and problem continues.