What causes miss firing and black smoke in Mitsubishi Galant 98 model when on idling. And when airflow sensor is removed its OK.

50

Asked by Nov 30, 2013 at 11:13 PM about the 1998 Mitsubishi Galant

Question type: General

10 Answers

104,235

Black smoke is un burnt fuel. Which motor do you have?

4 out of 4 people think this is helpful.
50

Its a Mitsubishi Galant 1998 model

2 out of 2 people think this is helpful.
104,235

Which engine is in it? The 2.0L DOHC or the 2.4L SOHC?

1 out of 1 people think this is helpful.
50

The engine is a 1.8L GDI petrol 16v

1 out of 1 people think this is helpful.
104,235

I would try cleaning the air flow sensor. When you say removed -- do you mean taking it off or just unplugging it from wiring harness? Also check and clean air filter.

50

I mean unplugging it from the wiring hatness

1 out of 1 people think this is helpful.
104,235

Oh ok. That leads me to think that the sensor either needs cleaning or to be replaced. I would try cleaning first. Only use cleaner for that type sensor and make sure that you don't touch any parts of the sensor with your hands.

50

I have replaced more than 3 sensors,replaced the GDI pump,replaced the fuel pump as well as the plugs. Now I am to check my ECU

104,235

Mass air flow sensor

1 out of 1 people think this is helpful.
Best Answer
50

Thank you very much. I will try that and get back to you on Monday. Nice day

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Galant

Looking for a Used Galant in your area?

CarGurus has 1,543 nationwide Galant listings starting at $1,995.

ZIP:

Search Mitsubishi Galant Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Mitsubishi Galant Experts

#1 dandyoun
dandyoun
Reputation 710
#2 Tom Demyan
Tom Demyan
Reputation 670
#3 Daniel Foster
Daniel Foster
Reputation 540
View All

Related Models For Sale

Used Honda Accord
966 Great Deals out of 74,563 listings starting at $899
Used Toyota Camry
1,168 Great Deals out of 95,513 listings starting at $1,250
Used Nissan Altima
1,026 Great Deals out of 82,431 listings starting at $670
Used Honda Civic
818 Great Deals out of 69,470 listings starting at $1,200
Used Mitsubishi Eclipse
45 Great Deals out of 1,445 listings starting at $2,395
Used Hyundai Sonata
678 Great Deals out of 48,855 listings starting at $700
Used Toyota Corolla
949 Great Deals out of 66,819 listings starting at $1,595
Used Mitsubishi Lancer Evolution
21 Great Deals out of 640 listings starting at $13,977
Used BMW 3 Series
1,449 Great Deals out of 38,302 listings starting at $1,495
Used Nissan Maxima
378 Great Deals out of 24,394 listings starting at $999
Used Chevrolet Malibu
1,110 Great Deals out of 82,195 listings starting at $1,800

Used Cars For Sale

2012 Mitsubishi Galant For Sale
9 Great Deals out of 349 listings starting at $4,995
2011 Mitsubishi Galant For Sale
8 Great Deals out of 229 listings starting at $2,750
2010 Mitsubishi Galant For Sale
4 Great Deals out of 117 listings starting at $3,991
2009 Mitsubishi Galant For Sale
176 listings starting at $1,995
2008 Mitsubishi Galant For Sale
54 listings starting at $8,999