Problem with a great Cherokee 2000

The problem is the following to reach 1500 RPM The Motor fails, it seems that it is drowning or accelerating the fault, the engine is recent

First take out a spark plug and fix if the rich or poor mixture is, then fix if it pulls black smoke by the exhaust. Also look if the distribution draft is fine, from there deduucis and you would have to check all the sensors that influence food system and measure them with an oscilloscope and a tester with the values ​​they have to have.

RPM sensor
MAF


sensor
Map

Sensor
Air

temperature



sensor and

butterfly body acutuator

The other thing that could have happened to you is that they were put on a starter and the Ecu were left crazy, that is, but it does anything

I agree with Blinihos the theme of spark plugs will guide you a lot along with the distribution and by adding something, check the escape, it is not that it is obstructed