Assalam o Alaikum , I have a Cultus 2009 efi and the problem is that with AC rpm drops and car turn of while in neutral or stuck in traffic . This problem doesn't happen when the car is cool but after getting to optimum temperature that is driving for 3-4 km with AC rpm falls and car turns off . Without AC car runs pretty good with stable rpm but even without AC if I drive for 30-40km then rpm starts to fluctuate and eventually the car turns of when in idle . With AC rpm fluctuates but most of the time it rises to 1000 and the car doesn't turn off but eventually it does turn off . I've done some research on pakwheels and YouTube and people suggest that problem is with iaf vale or iaf valve sensor (both parts are connected together almost making a piece) or the problem is with tp sensor all three of these parts are on throttle body . Even my mechanic suggested the same part to be faulty . I need expert opinion for
1 : do you people really think these parts are causing this issue or something else is responsible
2 : is there any place to get them knew as from what I've heard these are only available as kabuly because in case of kabuli we have to mix and match multiple of these sensors
Recent works done on my car
Throttle body service
Tappets work done (as they were making noise)
All seals in engine including oring seal of distributor and many more were changed as litle oil was leaking from different parts around engine
Spark plus are hardly a year old
Car is running completely on petrol although CNG is installed but disconnected but wires are still loose in engine bay
Tuning also done multiple times
Radiator in hardly an year old and serviced recently
No check engine lights
And when the car turns of it starts without any problem within a second
Also with cold start in the morning car starts at 1500 rpm and fluctuates for 3-4 minutes then it gets stable and you can smell petrol from exhaust
Kindly help this problem ha been a pain in my ....