Honghong Live | Tomorrow night! Mr. Yuan, a skilled auto mechanic, will bring you an in-depth explanation of the faults and analyze the nature of the faults!

Measuring vehicle signals at the onset of a fault with the aid of diagnostic equipment is a common way of quickly determining whether a problem exists in a component. However, if there is no fault code for the fault, nor can it be reproduced in the workshop, how do we start to diagnose it? A 16 year old Touareg has been experiencing weak acceleration, and has been in multiple service...

Continue ReadingHonghong Live | Tomorrow night! Mr. Yuan, a skilled auto mechanic, will bring you an in-depth explanation of the faults and analyze the nature of the faults!

[pico case share] 2014 Mazda CX-5 Engine Idle Shaking

A 2014 Mazda CX-5 with a PY engine. Accumulated mileage of about 250,000 kilometers, the car due to the engine idle speed shaking, engine fault light is lit abnormally fault. Using a pico oscilloscope and a pressure sensor WPS500X, measure the intake and exhaust pulses at startup and the ignition signal of cylinder 1 simultaneously. Replacement of cylinder 4 intake valve and valve seat after test drive, the engine idles smoothly, the fault is eliminated.

Continue Reading[pico case share] 2014 Mazda CX-5 Engine Idle Shaking