My bravo 1.6 mk1 stalls when I release throttle. Most significantly in 1st and 2nd gear. Also idling is not even when hot or cold.
I cleaned throttle body, idle step motor is new. I also measured injector resistance. Three of them are around 22ohm one of them is 16,5 ohm.
Could be injector fault? Injector light is never on.
I assume throttle sensor
Have someone similar problem?

possible lambda sensor is at fault?
Mine used to do this when i got it.got it back to the garage (where guarantee was) and it was the L/S at fault so got it replaced with a new one and all was well

Mike

well.. injectors shuld be around 16,5... so it looks like 1 is ok and 3 of them are little.... not good... maybe not original injectors?

All injectors are original. Thank you for post, but I think it is not lambda probe fault, because car stalls even when engine is cold. Lambda signal is ignored in that situation.


I also noticed that almost always when radiator fan turned on, it disturbs engine idling. I really have no idea how can this influe on idling.

fiat37 said:

I also noticed that almost always when radiator fan turned on, it disturbs engine idling. I really have no idea how can this influence on idling.

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Well, does it do that when the you start other electrical devices like ligts or internal fan?
If so the problem might be with the alternator, it might not be charging enough to keep the engine running smooth and keep all the electrical consumers to.
OR the alternator "diode bridge" ( this is the mot-a-mot translation from romanian) might be gone resulting in incorrect charging voltage, and this will cause the ECU to function improperly resulting in bad idling an a rough running engine.
You should use a voltmeter on the battery with engine running it should not go over 14.5-15.5V .

If its not the injectors or as mentioned above anything to do with messing the ECU signal up then I would say its a dirty or damaged crankshaft sensor as this will cause the car to stall and possibly even misfire too.

I measured battery voltage. It is 14.40V when idling.

Is it needed to lift car to check crankshaft sensor? But rev counter works fine. Is it tha same signal for rev counter and ECU?