Unstable idle

I have a Baleno Suzuki year 96, 1.8 121 horses injected, it has a idle problem for a year that no mechanic knows how Pedal, the car goes alone, I have to slightly step on the accelerator and I recover the control again and final It will help with the topic of the release because it is very difficult to drive in these conditions, the mechanics I think they do not have much interest in fixing the vehicle and pass, evict it, but it is the only one that I have and I cannot buy another, it would be very grateful if you explain to me what checks I can do to verify before taking it again to the workshop (I do not know much of a mechanic I need a video or manual).

Hello Cigsala.
Check the cable that carries the pedal signal to the accelerator arm, can be locked inside the case for some damage or dryness, I think it is only that. Luck.
Miguel.

If it is the accelerator cable, which is what it seems because of the symptoms, I cannot believe that no mechanic has found that. If it is not the cable, it verifies that the engine that controls the speed of idle and the accelerator body are fully clean, because of the kmtraje you say it has the car, they must be full of coal and oil waste if they have not cleaned them looking to solve this failure. If the cable is fine and the clean accelerator engine and body you have to do the test corresponding to this idle control engine to rule out that this defective and working intermittently. In some cases, disassemble it, clean it and re -assemble it solves the problem you indicate. I hope I have been helpful.

I agree with both on the occasions, the mechanics tend to blame sensors and electrical parts and omit the most obio, it is for this reason that if it could be the piola, it is good as Obdii says that it is a dirt problem either in the body of admission or in the same valve of Relay, now a detail did not tell us what you already see you Czech is important, that information is also important.

Kikemec wrote: I agree with both on occasions the mechanics tend to blame sensors and electrical parts and omit the most obio, it is for this reason that if it could be the piola, good as Obdii says that it is a problem of dirt either in the body of admission or in the same Relay valve, now a detail is not missing what you already saw you, it is also important to see that it is also important to you that IAC is in good condition

Simply the mechanics do not find the failure or do not put interest, by the way I beg you to tell me something also in reference to the theme of the smell of gasoline in the habitaculus and I strongly ask you to tell me if there is any video that you can understand to advance something like butterfly cleaning or check accelerating cable, of mechanics I am just, eternal thanks.