Mitsubishi Galant

Good afternoon, friends I have an aglant a year ago and sometimes, not always, it presents a problem: it puts on a downward rpm, it also puts fuel speaker and the black smoke comes out of bad combustion. The strangest thing is that it happens alone, I have taken it to Scannear and does not throw anything, besides changing spark plugs and filters and I continue with the same. Someone can help me with this.

Hello, how are you a little more to do your car, as since when I started like this, that they are the maintenance that you have done, that it is displayed, it is, for what you say is a fuel feeding problem, the black smoke is devoted to which it passes by fuel, give me data and send you some tests that are easy to perform with a test

Hi, look is displacement 2000 cc year 1998 Galant Super Salon. I have made change of spark plugs, spark plugs and bovine cable, also filter change and injector cleaning. and its religious oil change.

I would appreciate your help.

Pass me some data and I give you the solution of what happens to the machine

The first thing you should do is that at the time of the fault go to the vehicle data and review the main components that are responsible for regulating the fuel mixture, temperature sensor, air flow (MAP; Carman or air mass), TPS and oxygen sensors #1 write down and compare with the data it gives you in the same temperature conditions but at the time the vehicle does not fail because you have said what you have said. intermittent. Some of this data will vary and there you can start working.