Latest codes (and most often codes) 120D and 121B.
Engine acts as if it will stall at stop lights, sometimes stalls at start-up. Check engine light can be on or off when issue happens. A message says, 'Engine system service required'.
At low speed it can hesitate also, as if miss-fire.
New mass air flow sensor, coils and plugs, and new fuel filter. Smoke test showed 2 leaks, but those are fixed now, and still has the problem.
Engine acts as if it will stall at stop lights, sometimes stalls at start-up. Check engine light can be on or off when issue happens. A message says, 'Engine system service required'.
At low speed it can hesitate also, as if miss-fire.
New mass air flow sensor, coils and plugs, and new fuel filter. Smoke test showed 2 leaks, but those are fixed now, and still has the problem.
Oct 19, 2022 at 1:01 PM
