I had the same problem and surprisingly when we cleaned the grounds it seemed to help. 
Jeff 

Sent from my iPhone

> On Mar 22, 2019, at 6:03 PM, thewestyman <zolo@foxinternet.net> wrote:
> 
> Hi guys,
> 
> This 1.9 with A/T does not idle at the right rpm in Reverse or Drive.
> I understand, it would drop the rpm a little but not to 400 as is now.  
> I know, there is no electrical or vacuum with these A/Ts.  So, what to look for in this case?
> Interestingly it is fine while it’s still warming up, but as soon it is warmed up it won’t work as it should.  
> After it’s warmed up and I have to re-start, it’s fine again for a while.  
> Anyone?
> Zoltan