How to repair the fault code P0 1.8T in Santa Fe?

The fault code of 1.P0 172 is: One row of systems is too rich: the oxygen content in the exhaust gas is too high.

Second, the solution: pull the high speed and change a new air filter to make the air intake smoother and the combustion more complete.

Third, the source of the fault: analyze and preliminarily determine the source of the fault: there may be a sensor problem in the air intake system, and consider whether to replace the air filter on time. It may be that the air filter is blocked because the air is not changed during the dirty and wet period, and the fuel injection at the intake foot is too thick. You can try changing the air filter.

After matching, the computer detected that the fault code disappeared and detected the data of the first exhaust oxygen sensor. The final reason may be that the air is too dirty and the throttle is too dirty.

Fourth, other methods:

1, p0 172 A group of automobile fault codes is that the mixed steam is too thick, and the fault code p0 172 A group of mixed steam is too thick, which means that the oxygen sensor detects that there is too little oxygen in the exhaust gas (too much gasoline), so the throttle valve is cleaned, the filter is replaced or the oxygen sensor fails.

2.P0 172 fuel fine-tuning system is too rich. B indicates poor mixing ratio and insufficient combustion. Check whether the spark plug, cylinder pipeline, intake manifold pressure sensor and throttle valve are normal.