Mass airflow sensor MAF

1996 NISSAN ALTIMA
180,000 MILES • 2.4L • 4 CYL • FWD • MANUAL
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CHANNING BLAIR
  • MEMBER
  • 3 POSTS
Will not start anymore. the last time it started four months ago it idled erratically and shook and shut off when you give it gas. It has not started since. fuel pump is good. I am short on cash so I need a solid answer before I replace.
Feb 28, 2017 at 5:03 PM
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MHPAUTOS
  • ✓Experienced Mechanic
  • 31,937 POSTS
you must do the diagnostics first, you need to prove fuel pressure is correct, injection pulse and spark are okay and check for any codes. and with the symptoms you have also any vacuum leaks, you need to do these steps first.
Feb 28, 2017 at 5:15 PM
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CHANNING BLAIR
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  • 3 POSTS
Mechanics said its all good, Throwing o2 sensor codes and camshaft.
Feb 28, 2017 at 6:15 PM
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MHPAUTOS
  • ✓Experienced Mechanic
  • 31,937 POSTS
cam shaft position sensor?
Feb 28, 2017 at 7:18 PM
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CHANNING BLAIR
  • MEMBER
  • 3 POSTS
According to all auto parts stores my car does not have one nor has it ever.
Feb 28, 2017 at 10:02 PM
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STRAILER
  • ✓Experienced Mechanic
  • 55,553 POSTS
Hey CHANNING,

I would start with the code numbers maybe he is getting mixed up with a crankshaft sensor, Next I would do a compression test to see if there is an internal problem with the engine before you go dumping money into it.

Here are some guide that will help you get started.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

and

https://www.2carpros.com/articles/how-to-test-engine-compression

Please run some tests and get back to us so we can continue helping you.

Best, Ken
Mar 3, 2017 at 9:45 AM
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