Issuzu Rodeo 95 Ralenti problems

Greetings
I have a problem with an Isuzu Rodeo year 95 6VD1 engine. The problem is that in idle fails and the revolution needle rises and lows slightly and after accelerating the revolutions they go down until they want to go out, it has no light of check on

Hello everyone, Isai182 . 6VD1, very good engine ... From my experience with them and reading their post, in my opinion it is most likely that you have dirt or dirt accumulated in the passages and in the idle control valve (IAC), how does the engine behave if you light the air conditioning? Kind regards.

Thank you for answering Fiat 147. I tell you to check the IAC and it is perfectly clean, what I did not do was see the good idea ducts and that it should happen when putting the air conditioning

When you put the air conditioning, the motor revolutions must increase a bit

Hello everyone, Isai182, as the fellow Ener32 says, when the A/C is on the engine rpm. What I was going to be that if you turn on the A/Cy the symptoms increase a lot (oscillations and engine trend to be prayed in deceleration phases) is most likely dirt in the idle control system ... in any case it would be useful that you told us more, normal power? softness of operation? The symptoms occur more cold or hot ... in order to help him. Kind regards.