Warning lights

Tiny
THEAGLENN06
  • MEMBER
  • 2002 NISSAN ALTIMA
  • 4 CYL
  • 127,000 MILES
I went to an auto parts store and had my car put on a computer and the code that came up was P0107.I would like to know what that is because I feel the guy really didn't know what he was doing. I have a 2002 nissan altima, and the engine is a 2.5 4cylinder. Can someone please help
Do you
have the same problem?
Yes
No
Monday, February 14th, 2011 AT 10:41 AM

3 Replies

Tiny
MHPAUTOS
  • EXPERT
P0170 Description With the Air/Fuel Mixture Ratio Self-Learning Control, the actual mixture ratio can be brought closely to the theoretical mixture ratio based on the mixture ratio feedback signal from the heated oxygen sensors 1. The ECM calculates the necessary compensation to correct the offset between the actual and the theoretical ratios.

In case the amount of the compensation value is extremely large (The actual mixture ratio is too lean.), The ECM judges the condition as the fuel injection system malfunction and light up the MIL (2 trip detection logic).

Symptoms- Engine Light ON (or Service Engine Soon Warning Light)
- Excessive Fuel ConsumptionPossible causes- Intake air leaks
- Front Heated oxygen sensor may be faulty
- Injectors may be faulty
- Exhaust gas leaks
- Incorrect fuel pressure
- Lack of fuel
- Mass air flow sensor may be faulty
- Incorrect PCV hose connecPossible solutionDirty air filter of faulty air flow sensor are common causes of the problem. When is the code detected?- Fuel injection system does not operate properly.
- The amount of mixture ratio compensation is too large. (The mixture ratio is too lean.)

Mark (mhpautos)
Was this
answer
helpful?
Yes
No
Monday, February 14th, 2011 AT 10:48 AM
Tiny
THEAGLENN06
  • MEMBER
I'm so lost about what you are saying. My engine light has not come on at all
Was this
answer
helpful?
Yes
No
Tuesday, February 15th, 2011 AT 2:47 AM
Tiny
MHPAUTOS
  • EXPERT
You say you have a fault Code P0170, this is the description of the code and possible causes.

Excessive Fuel Consumption Possible causes- Intake air leaks
- Front Heated oxygen sensor may be faulty
- Injectors may be faulty
- Exhaust gas leaks
- Incorrect fuel pressure
- Lack of fuel
- Mass air flow sensor may be faulty
- Incorrect PCV hose connecPossible solutionDirty air filter of faulty air flow sensor are common causes of the problem. When is the code detected?- Fuel injection system does not operate properly.
- The amount of mixture ratio compensation is too large. (The mixture ratio is too lean.)

These are the things that will need checking out.

Mark (mhpautos)
Was this
answer
helpful?
Yes
No
Tuesday, February 15th, 2011 AT 6:19 AM

Please login or register to post a reply.

Recommended Guides