Helloo

Thanks for the welcome . Well it's a long story with my Nissan, but to start .

I love Japanese cars. This is my third in a row . Mazda Suzuki Well now Nissan .

I am the fourth owner of this car. Two years ago, someone had imported from Switzerland .

When I bought the car , it was a gas installation . Now you can work on LPG and petrol .

Of course when I bought it , I had a check engine light . Since I have a Chinese version CDP.pro diagnostic devices . I had a couple of mistakes . Lean on bank 1 , amiss ignition and knock sensor .

And the car did not want to go over 3000 rpm no matter what I do I do .

The first thing I did is I bought a new orginlani MAF sensor from Bosch . It solved the problem with the revs . And since then, generally , the engine began to run normally .

I bought an O2 sensor with 3 wires , which was not the original but it is acceptable to by the numbers on my car .

it is the o2 sensor that goes before the catalyst . I reviewed how I could pressure fuel injectors . Before the inlet pipe . Exhaust manifold to make sure it does not leak somewhere

I bought a new iridium spark plugs . I bought a new distributor cap . New cables for electricity for spark plugs . And one part that goes inside junction caps , in my country is called the finger . Over it goes electric spark to the spark plugs .

And after all I still have error P0171 and I have enormous spending about 16 liters of gasoline per 100 km.