Well, I have a question about my uncle's car which is an Opel Astra G 1.8 16v (Vauxhall Astra SRI MK4) which has the engine x18xe1 throttlebody with drive-by cable?
Anyway, When I drive the car its stuttering in gear 1/2 but its seems to work normally in neutral gear. So, I firstly thought that it was the Throttle body or the EGR.
My question is that, I want to clean the throttle body but is it necessary to take it off or can I just clean the upper side of it the butterfly valve.
What do I need to clean it correctly? Any Engine gurus have ideas?
I'm sorry that I'm asking this here, but I'm not a member of any other forums
Thanks!