Engine loses power and stalls at low speeds

1998 MITSUBISHI ECLIPSE

188,789 MILES • 2.0L • 4 CYL • 2WD • AUTOMATIC

AFDSMSHADETREEMECH

MEMBER
1 POST

While driving the engine will stall usually at low speeds sometimes when it loses power I can keep it running by letting off accelerator or flooring accelerator. I'm thinking a sensor is causing the issues. it seemed like it was bad gas but I ruled that out. fuel pressure seems to be good just changed plugs and plug wires an had to put a helicoil on number 4 plug but engine ran fine afterwards. My car has the 2.0l dohc 420a non turbo engine it is auto transmission fwd. any ideas please info is appreciated. would like a diagram for all the sensors (not in Chilton book).

Jul 3, 2020 at 8:11 PM

DANNY L

✓Experienced Mechanic
5,648 POSTS

Hello, I'm Danny.

First thing I would suggest is to perform a fuel pressure test.Sounds like you might have a weak or failing fuel pump.If you don't have access to a fuel pressure tester most auto parts stores have a tool loaner program and can rent you one.Here is a tutorial showing what is involved to test fuel pressure:

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

I've attached a picture below for your car fuel pressure specification below.Hope this helps and thanks for using 2CarPros.

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Jul 3, 2020 at 8:50 PM

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