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1995 Mitsubishi Lancer acceleration

Tiny
LONGLIVEHOLDEN
  • MEMBER
  • 1995 MITSUBISHI LANCER
  • 207,000 MILES
Hi there, my lancer idles low, it always starts first time. When first started it runs fine but after it heats up and I accelerate it start to choke like someones squising the fuel line and letting it go, it will do this and il loose speed and have to turn the car off and on again, that will get me a little bit further untill it starts again, I changed the fuel filter it was dirty as looked like a rust colour and ive changed the air filter that was in a bad way, what is my next step. Thanks jason
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Tuesday, November 12th, 2013 AT 11:38 PM

13 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,758 POSTS
Have you checked fuel pump pressure?
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Wednesday, November 13th, 2013 AT 5:20 AM
Tiny
LONGLIVEHOLDEN
  • MEMBER
  • 11 POSTS
I had wondered if the pump had something to do with it, it is a bit noisie from the tank through the lines, thank you il check it out and let you no how it goes.
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Wednesday, November 13th, 2013 AT 1:32 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,758 POSTS
Let me know what you find.
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Wednesday, November 13th, 2013 AT 4:13 PM
Tiny
LONGLIVEHOLDEN
  • MEMBER
  • 11 POSTS
Hi there, ive held the revs at 2000 rpm and there is good pressure comming from the exaust, I distonected the 02 sensor while the car was running and there was no change at all would that be the cause of my problem.
Cheers jason.
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Thursday, November 21st, 2013 AT 11:11 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,758 POSTS
If there is a problem with the O2 sensor, the computer will run in what is called a closed loop. So, you may not notice anything different unless you drive it that way. Did you checked pump pressure?
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Friday, November 22nd, 2013 AT 5:15 AM
Tiny
LONGLIVEHOLDEN
  • MEMBER
  • 11 POSTS
I changed the pump but not sure how to check the pressure.
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Friday, November 22nd, 2013 AT 8:01 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,758 POSTS
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
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Friday, November 22nd, 2013 AT 8:48 AM
Tiny
LONGLIVEHOLDEN
  • MEMBER
  • 11 POSTS
Thanks il give it a crack
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Friday, November 22nd, 2013 AT 9:07 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,758 POSTS
You'll need a fuel pressure gauge. Most parts stores will lend or rent them.
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Friday, November 22nd, 2013 AT 9:45 AM
Tiny
LONGLIVEHOLDEN
  • MEMBER
  • 11 POSTS
Cool thank u il let you know how it all goes.
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Friday, November 22nd, 2013 AT 9:50 AM
Tiny
JACOBANDNICKOLAS
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I'll be looking for your reply.
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Friday, November 22nd, 2013 AT 5:35 PM
Tiny
LONGLIVEHOLDEN
  • MEMBER
  • 11 POSTS
Hi there I finaly got my lancer back on the rd, I ended up pulling out the injectors and they were clooged up full of gunk, there was only one injector that was partly open. Now after cleaning them out the car is running like it should and not missing a beat, thank you for all your advise if I have any problems in the future il be back on here to ask your advise.
Cheers jason.
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Saturday, November 30th, 2013 AT 11:22 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,758 POSTS
Excellent! Glad you got it fixed. Let us know if you have questions in the future.
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Saturday, November 30th, 2013 AT 6:51 PM

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