Mazda B2200 1991 FAQs

Check out real-world situations relating to the Mazda here, particularly what our experts have to say about them.

• My 2021 Mazda CX-30 is having gear change issues on inclines

  This behaviour is probably a function of the way Mazda has calibrated the cruise control. In order for the car to initiate a downshift to regain some lost speed on a hill, it needs to recognise that it has, in fact, slowed down. But if it shifted down after losing just a single kilometre per hour, you’d find it would be constantly shifting gears in even slightly hilly terrain. And that would probably be even more annoying. The fact that it then overruns the set speed is probably the tall gearing (and physics) letting the car momentarily push through your 111km/h setting before it settles back to that speed.

  But it’s worth keeping an eye on the speedometer even when using cruise-control, as this behaviour won’t work as an excuse during any roadside chats with the Highway Patrol.

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• My 1997 Mazda sedan is running rough

  A car like this shouldn’t frighten too many mechanics, largely because this is a fairly simple machine using well-understood technologies. In a situation like this one, most workshops will go back to first principles. That is: Air, fuel and spark.

  On the surface, it sounds like a fuelling problem that is causing the engine to run out of fuel when it needs it most (when accelerating). So a check of the fuel filters, the fuel pump delivery pressure and volume and the injectors would be a good place to start. However, stumbling under load can also be caused by poor ignition, so the spark plugs, leads and coil(s) and charging system should also be checked out. Don’t forget things like a dirty air filter which also cause a case of the stumbles.

  If all that checks out, then you need to start looking for a dud sensor somewhere in the engine bay. An electronic scan is a must for any electronically-injected car.

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• Replacement LED headlights aren't running correctly on a 2011 Mazda BT-50 ute

  The smart money here suggests that there’s something your car’s electrical system and body computer don’t like about replacement LED lights. That’s assuming you’ve installed them correctly, of course. The first thing you should do is replace the standard globes and see if that restores the lights’ operation. If it does, you can be reasonably sure there’s a problem with the way the car reacts to the LED replacements.

  Not all cars appreciate the conversion to LEDs. These newer lights draw a lot less current than conventional globes and, while that sounds like a good thing, the lack of current-draw detected by the body computer can cause problems. Another common problem with LEDs is that the low current-draw makes the car’s computer think that there’s a blown globe at which point it can trigger a warning light on the dashboard.

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