Please. Help me with this throttle

[Sigmarus]

I am in the process of repairing the throttle.
Over a year ago, I replaced the sensor with a halotron one because of the ECM-91B7 error.
After the exchange it was great for a long time. Until the day before yesterday, when the error reappeared and the car started very hard in the cold engine.
I decided to take out and clean the throttle.
After cleaning, I caught that the flap stuck a little ... I made a movie:
https://youtu.be/PvP_5oy5NCM

After cleaning it is a little better but still stutters. Is it normal? Can it be repaired somehow besides cleaning or WD-40?

Thanks for any advice

[chris11211]

Hmm. Those units are not reliable, that much I know. And since no one has given you advice in a while, i'd say order a new/used one if you can. Otherwise, you could try and clear the memory and have the car re-learn the idle parameters if you want to re-install to see what happens.

Christ sake don't use WD-40, there's throttle body cleaner for a reason, and try not to get it inside the unit through the flap.

[SuperHerman]

What is the maker of the Throttle Body and mileage on the engine. Also what color is the sticker and does it have a build date?

If the throttle body is suffering from connectivity problems due to the ribbons failing - you can try a contact less conversion.

I did this on my 2001 XC70 with great success.

If you have VIDA or access to VIDA it has a robust test for the throttle body - it will be pretty determinative.

I hope we are talking the same part.

[Sigmarus]

I have vida from aliexpress and know those things. I have replace TPS sensor to contactless sensor obe tear ago and was good till now.

I have ECM- 91B7 fault and very hard to start the engine.
Spark plugs are new , rest is ok. I was thinking that could be a faulty throttle possition...
Afer i clean this throttle and put to the car today i have the same problem with starting and with this faulty code...