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2001 Nissan Sentra Car Doesn't Accelerate past 10mph lunges

Tiny
FIENX001
  • MEMBER
  • 2001 NISSAN SENTRA
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 129,000 MILES
I started the car and the rpms bounced between 500-1000. Then the car died when I shifted into Drive. I drove it to the shop today and I thought I was going to have to push it, it seemed to have died but the engine was still running and it was crawling along. They ran some diagonostic that came back with 6 codes and their best bet is the mass airflow sensor.

I replaced that myself several years ago, but when it went out last time I could still drive normally with one foot on the brake and the other on the gas to keep the rpms up. That doesn't work this time.
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Thursday, August 5th, 2010 AT 8:21 PM

3 Replies

Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
Without knowing all of the codes, it would be hard to tell what is wrong, especially with that many of them.A MAF can do what you describe, but if it was replaced a few years ago it shouldnt be bad already. Check for vacuum leaks between the MAF and the engine or anywhere on the engine, this will lean out the mixture and cause it to run poorly. Will the engine rev up in park?
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Thursday, August 5th, 2010 AT 8:57 PM
Tiny
FIENX001
  • MEMBER
  • 2 POSTS
Hi, Thanks for the fast reply. It will rev up in park.
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Thursday, August 5th, 2010 AT 9:15 PM
Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
You can also use carb cleaner to carefully spray around the intake area, if it changes the idle you have sprayed a vacuum leak
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Thursday, August 5th, 2010 AT 9:17 PM

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