Hesitation under acceleration, cutting out etc - Alfa Romeo Forum
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Hesitation under acceleration, cutting out etc


I have a 2003 2.0 TS which has the following problems which I think are related. If you press the accelerator sharply, the car hesitates before picking up. If you squeeze it gently, it's fine. Additionally, it will cut out on idle and sometimes the idling dips very low (250 rpm) and then goes back up. I have swapped the MAF but it's no better. There are no air leaks and the ECU is showing no faults. Car's done 35,000 miles. Anyone got any ideas as my Alfa specialist mechanic is at a loss.



Current cars : GT 3.2 standard + Q2, 2.0 TS Spider (916). Previous Italian cars: GTV 3.0 P2 (916), 146ti, Spider 2.0 TS (916), 147 2.0 TS, GT Cloverleaf Jtdm, GT Jtdm (crushed by tractor), Fiat Coupe 16v Turbo, Fiat Coupe 20v Turbo.
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I guess next thing to check would be lambda sensors. I suppose your car is a CF3 so will have 3 sensors which complicates matters. You can use MES software to check if they cycling properly.
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acceleration , cutting , hesitation

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