Engine hesitates

PACIFICISLANDER

MEMBER
1994 MITSUBISHI MIGHTY MAX
2.4L
4 CYL
2WD
AUTOMATIC
100,000 MILES

When you start to give gas while moving it hesitates for a second or so then picks up until you give it gas again it doesn't stall just picks up.

Saturday, July 17th, 2021 AT 5:15 PM

3 Replies

JACOBANDNICKOLAS

MECHANIC
109,709 POSTS

Hi,

This can be the result of several different things. For example, an engine vacuum leak, fuel pressure issues, ignition timing, and so on can all cause a hesitation.

So, let's start by checking if there are diagnostic trouble codes that may point us in the right direction.

Follow the directions in the following link and let me know if you find any codes.

https://www.2carpros.com/articles/mitsubishi-trouble-code-definitions-and-retrieval-procedure-for-odb1-system

I'll watch for your reply.

Take care,

Joe

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Saturday, July 17th, 2021 AT 10:14 PM

PACIFICISLANDER

MEMBER
240 POSTS

Joe, I went through my shotgun answer from the past and the MAS is out of whack.

Oxygen sensor.

Catalytic converter.

Fuel injectors dirty/sticking.

Mass airflow sensor/air flow meter.

Throttle position sensor.

Crankshaft position sensor.

Knock sensor.

Manifold absolute pressure sensor.

EGR Valve.

Fuel pressure regulator leaking or defective fuel pump.

False air leakage.

Fuel contamination.

Foul/defective spark plugs.

Open spark plug wires.

Ignition coil/Coil packs defective.

Incorrect ignition timing.

Cap and rotor.

Thank you. Have a nice day, see you again someday-take care and be safe.

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Tuesday, July 20th, 2021 AT 12:21 AM

JACOBANDNICKOLAS

MECHANIC
109,709 POSTS

Hi,

I'm glad to hear you found the problem. Also, thanks for the update. It will likely help others in the future.

I want to say hope to see you again, but that means you have problems, and I don't want that. LOL

Regardless, please feel free to come back any time in the future. You're always welcome here.

Take care,

Joe

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Tuesday, July 20th, 2021 AT 8:06 PM