Question

Volkswagen Polo with engine code P1426. Engine shut down comes on again. No engine light on.
Gives code P1426

Answer 1

HI there

This code is for an open circuit on the tank vent valve. This should not cause the engine to shut down. I would check the mass air flow sensor. This could cause this type of issue. Here's some more info on the code for you.

P1426 VOLKSWAGEN - Tank Ventilation Valve Open Circuit
Read more: https://www.autocodes.com/p1426_volkswagen.html