CX-7 engine stutters when floored at 60 kmph


Asked by Feb 11, 2016 at 01:58 AM about the 2009 Mazda CX-7

Question type: Maintenance & Repair

My end 2009 Mazda CX-7 with a 2.3 litre petrol engine + turbo stutters
when I floor it while moving around 60 kmph.

The engine is alright even if I floor it from rest. It's also alright if I step on
the gas pedal till about 95% while moving at 60 kmph.

Does the engine need more torque/power when floored while moving at 60
kmph compared to being floored from rest?

Things that I can think of are spark plugs, petrol filter/pump and air filter.
The one thing that I'm hoping is not the problem is the turbo.

I've heard that the CX-7 has a Throttle Position Sensor (TPS) and jerking
while accelerating is one of the symptoms. However, the other symptoms
are not present.

Any idea what is causing this problem? Would the Mazda service centre be
able to trouble-shoot the problem through engine diagnostics alone?

I hope that they won't give me a list of possibilities which would mean that I
have to change multiple components one by one.

1 Answer


Changed my spark plugs and the problem went away.

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