Emission Control Problems of Mazda 626

Vehicle: Mazda 626 2001. The engine light has kicked on numerous times while driving at a 35-40mph. Mechanics indicate that the code references the one of two problems- oxygen sensor defect or catalyst inefficiency. But, because the code is not specific as to which piece is defective the only recourse is to drive the vehicle and if the engine light turns off don't worry or bring the vehicle back if the light continues to stay on. I have continued to drive the vehicle and of course the light turns itself off. I return to the service station when the light turns back on. This problem has been occurring over a two month time span. I have not had any work done to "solve" the problem because no one knows what the problem may be. This is not a valid answer. The engine light would not activate if there is "no problem". Please provide assistance. If you are having this problem please file a complaint.

See all problems of the 2001 Mazda 626 🔎.

I am the original vehicle owner. The car has 120,000 miles on it. I had to replace the radiator, oxgen sensor and the transmission this summer. It seems unusual for a car this young to have such extensive, expensive problems.

See all problems of the 1999 Mazda 626 🔎.

1997 Mazda 626 lx - transmission, catalytic converter, oxygen sensor, and computer have all been repaired in a span of 11 months. The car does not have 80,000 miles on it!.

See all problems of the 1997 Mazda 626 🔎.

Problems started in September 1999 with the mass air flow sensor coming unplugged. Had repair done, came loose again in October 1999. Dealer didn't run any diagnostics, just said the m. A. F. S. Was the problem. O/d light would blink while driving on highways. Car wouldn't shift into 2nd gear w/o a struggle. When overdrive went off, car wants to stay in 3rd gear. Became jumpy and sluggish. Car won't shift into any gear. Just stays in neutral. Engine makes loud pinging noises when started and while idling. When coming off a complete stop, car struggles to get into 1st gear; when it finally goes, car jumps hard before driving. If there is any information about a lawsuit against Mazda, I would like to be informed. I think all of the 626 drivers should nail Mazda for all they've got!! why should we spend our $ to fix the problems they caused? please email me at aoguinn@aol. Com if there is any information on a lawsuit. Angela & richard o'guinn.

See all problems of the 1996 Mazda 626 🔎.

Check engine light came on - dealer says that if car is running okay that no service needed?????? finally get it checked out and turns out that cat converter is going bad. Barely get that repaired under warranty limit. Same day, driving home from dealer, engine light comes back on. Bring it back to dealer, they say air flow meter is also bad and needs to be replaced, but not covered under warranty. At least engine light stays off now. Then, at only 78k, o/d light starts blinking along with check engine light. Shop says that it's transmission (torque converter). Why are so many of these units failing so early? only 78k on car, more than half of them are from pure hwy trips of 45 miles?????? why isn't Mazda doing anything for consumers about this?.

Vehicle taken to service twice under warranty. Sensor cleaned instead of replaced. Per Mazda, this is not a proper "repair". Now mass air flow & O2 sensor damaged. Vehicle stalls when slowing or stopped.

I had many problems with this 626, Mazda from the day I drove it off the lot and I tried to get the company to take it back and they would give me lots of excuses and were not helpful. In the end I was told the air flow sensor was gone & I paid 300. 00 for repairs. 2 days later the car started having the same problem and had it towed in and the transmission was gone, catalytic converter needed replacing again and another part. I asked for a refund on the mass air flow sensor telling them that the o/d light had been coming on and I think that was the problem, but would not refund me for the cost. They then wanted 6000. 00 for it all and I told them, I have replaced so many parts on this car and tried to get you to take it back and they refused. I also asked if they would give me a credit towards another vehicle, since I was sold a lemon. They refused. I had to turn the car back in to the loan company. I could not afford to pay 6000. 00 for repairs and pay 350. 00 monthly . I was ahead on my payments too. Turned it in to the loan company and now my credit has been affected. Because of all the costly repairs that I had to do and make payments along with it all. I want some help and restiution in this situation.

Consumer was traveling on highway and engine check light came on dashboard. Mechanic told consumer that oxygen sensor malfunctioned. Dealership was aware of problem.

See all problems of the 1998 Mazda 626 🔎.

Check engine light on due to faulty air mass meter. Mjs.

Oxygen sensor failed.

Check the engine light comes on and goes off repeatedly due to oil spilling into air flow sensor and due to intake manifold gasket leaking. Yh.