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There is this thing called turbo lag! This is the amount of time it takes for the turbo charger to start producing results you can feel in the seat of your pants. So until an engine produces enough exhaust volume the boost will be low. Another factor is the volume of the intake runner between the turbo and the throttle body.

Now maybe a tune up will help. But keep in mind the more often you run at boost- the lower your mileage per gallon. So if you stay under 3000 rpms you will get better mileage.

So stay away from the boost if you want better mileage and accept that the engine does not see boost below 3000 rpms. More then likely at freeway speeds in fifth gear or better the engine is under 3K and you don't drive in that range very often. You want the boost and when you have boost it sucks gasoline.

Mazda Cx 7 2007 Problems

2007 Mazda Cx-7 Problems

Google Mazda Technical Service Bulletins for Cx7. That will take the guess work out. Then take it from there. I would think it is better to do a little investigation at home before spending money on a tune up or getting the run around of a tech not knowing because they can't duplicate the problem. Now my be the time to get out of it. The Cx7 has a troubled mechanical history around the turbocharger unit.

I hope this helps.

The Mazda CX7 comes with a 2.3L I-4 Turbocharged Intercooled engine with 244 HP. I suppose the huge difference is a smaller engine that places out the same HP as a V6 engine. You in general get higher gas economic climate, and on the 07 items you have got to use premium gas. Now on the 08 model you'll be capable to make use of commonplace unleaded. The rapid charged engine will perform higher than a V6 engine. While you hit the fuel you will think the car pull you again to your seat. It's particularly a satisfactory engine that's one in all Wards 10 first-class engines for 2007. Go for a test power and spot for your self if it can be something your all for.

spark plugs... tune-up might be needed.