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Old 04-02-2016   #1
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03 punto active sport 1.2 8v won't rev past 3.5k

Ive been having this issue with my Punto for a couple of weeks now and have had enough of it.

She starts first time every time and runs as smooth as the day I got it.

The issue is when you get to 3.5k rpm. It happens when I'm in gear and parked up. As soon as you reach 3.5k rpm the revs drop and bounce between 2k and 3k and the engine management light flashes on.

I've checked all the spark plugs, spacings and leads. I've even replaced the MAP sensor and cleaned out the throttle body.

The car drives perfectly, mpg is good (better with this issue) but you just cant work your way up the gears properly. I'm having to change up early all the time other wise the car jerks and you end up losing a load of speed.

I'm running out of ideas so any help would be great.

Cheers
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Old 04-02-2016   #2
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Re: 03 punto active sport 1.2 8v won't rev past 3.5k

fuel pump
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Old 06-02-2016   #3
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Re: 03 punto active sport 1.2 8v won't rev past 3.5k

Managed to borrow my cousins punto today, spent some time swapping stuff from his car to mine to see what the problem was.

We started with the fuel pump and the issue was still there. We swapped throttle bodies to rule that out, still the same.

As we were about to give up we swapped the crank position sensor and BOOM success at last.

Crank position sensor ordered and on its way for tuesday.

Happy Days
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