Is there a relationship between idle speed and timing of Wuling Hongtu?

Idle speed fluctuation has nothing to do with timing. Idle speed fluctuation is generally caused by the change of air intake. The computer will monitor the comparison between the engine speed and the idle theoretical value, and then control the opening of the idle motor to control the air intake, so as to determine the fuel injection quantity.

First, let's see if there is any air leakage. The simplest way is to start the engine and block the air inlet of the idle motor at the throttle to see if the engine can be turned off immediately, so as to judge whether there is air leakage from the throttle to the intake branch pipe.

This car is usually idling. If there is no problem with ignition and fuel injection, start with throttle valve, EGR valve, PVC valve and carbon charging solenoid valve, which are all connected with air intake.