symon. You need to get the codes read, could be something like the MAF or a Multiair issue. I don't think a gear position switch fault would cause a missfire. They may have put the wrong oil in it. Gone but not forgotten 145 QV x3, 146Ti x3, 156 2.0TS x 2, 156 V6 x2 GTV V6 x2, 164 V6 x2, Spider 2.0TS, Giulietta.
Today a Have engine checked message appeared and after reading the fault code it says P0130 o2 Sensor Circuit Malfunction (Bank 1 Sensor 1). Engine seems to run all right though. Engine seems to run all right though.
166 posts · Joined 2012. #2 · Apr 28, 2012. 16724/P0340 - Camshaft Position Sensor (G40): Malfunction. Possible Symptoms. Malfunction Indicator Light (MIL) active. Possible Causes. Wiring from/to Camshaft Position Sensor (G40) faulty. Camshaft Position Sensor (G40) faulty. Timing misaligned.
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alfa romeo giulietta fault codes