I changed a mass air flow sensor on 1998 madza 626 car now stalls any solutions

SOURCE: I have 2004 mazda mvp

Have you replaced your PCV hose? If it gets sucked in it will cause a lot of problems.

Mike Deemer-White

• 96 Answers
• Posted on Mar 06, 2009

SOURCE: 2002 Madza 626 4cyl car will not start. Has spark

It could be: clogged fuel filter, bad fuel pump, or the cutoff switch. Could be fuel pump relay. It's in the engine compartment fues block, and labeled "Fuel Pump"

If it's either the filter or the pump, replace both at the same time, it's cheaper.

The fuel cutoff in located in the trunk, along the driver side rear fender, you have to pull all the carpeting and such out on that side to get to it. It's marked "Fuel cutoff" Not sure on the 626, you might just have to push the reset button on the module.

However I doubt this is your problem I would think it's either the relay, the filter or pump.

SOURCE: Cold Air Intake - Mass Air Flow Sensor Adapter

i have a 91 mx6. the intake is all cattywompus and im just goin to take a piece of metal and tube and cut a hole in the peice of metal and weld the tube to it take my stupid box out and run that pipe staight to a coupling and then to the cone air filter. BAM!!!! problem fixed... i maight be able to fix yours too... e-mail me [email protected]. k?

Jeff Barton

• 520 Answers
• Posted on Jun 28, 2009

SOURCE: my1999 madza 626 idles rough when its in drive or when i cut on

this could be a case of carbon debris in the throttle body plates and idle air control chambers...simply might just need serviced/cleaned...pull air intake off throttle body and spray with a good throttle body cleaner spray including the idle air ports. Ive also seen motor mounts cause this as this is more of a vibration felt in gear

SOURCE: Idle rough in R, D, fine in neutral

hmmm have you had the timing belt changed? is it due for one? that can cause a some rough idling.