CEL Issue!!

[2.3LRNGR]

So saturday night on the way home from work my CEL turned on, so the next day went to auto zone for them to read my codes and What came up was
P0171 and P0174 NEED HELP

 

[azreb]

Check this link:

http://www.obd-codes.com/p0171

 

[adsm08]

Intake gaskets.

 

[2.3LRNGR]

Are you sure it my intake gasket cuz the paper they printed me out said it had to deal with my air fuel ratio

 

[2.3LRNGR]

it a 99 ford ranger 4.0L auto 4x4

 

[adsm08]

My qualifications are Ford Technician. The qualifications of the information you have so far are "piece of paper printed by a parts-jockey who barely graduated high school". Now I will explain:

The Mass Air Flow sensor, right behind the air filter box is what determines the amount of air coming into the engine. Any air coming into the engine, or "leaking" if you will, after that point will disturb the air/fuel ratio towards the lean side. P0171 and P0174 are bank 1 and 2 lean respectively. Unmetered air IS getting into your engine somewhere.

The 4.0 is known for intake gaskets going bad. Especially after this much time.


My response stands.

 

[2.3LRNGR]

How Hard of a job is this???

 

[adsm08]

3 out of 10. Worst part is getting the EGR tube off. You will need a 1-1/16" wrench.

 

[2.3LRNGR]

Is there 2?

 

[Sasquatch_Ryda]

Gaskets? Yes, an upper and a lower gasket.

 

[db796]

My qualifications are Ford Technician. The qualifications of the information you have so far are "piece of paper printed by a parts-jockey who barely graduated high school". Now I will explain:

The Mass Air Flow sensor, right behind the air filter box is what determines the amount of air coming into the engine. Any air coming into the engine, or "leaking" if you will, after that point will disturb the air/fuel ratio towards the lean side. P0171 and P0174 are bank 1 and 2 lean respectively. Unmetered air IS getting into your engine somewhere.

The 4.0 is known for intake gaskets going bad. Especially after this much time.


My response stands.

roflmfao

 

[Earl43P]

http://api.viglink.com/api/click?fo...php?t=171819&jsonp=vglnk_jsonp_13234537651091


^ That link will walk you through intake gasket replacement.
Before you do all that, you should inspect all your tubing and elbows for the PCV plumbing. You should also verify that the intake tube from the airbox/MAF to the throttle body is tight and the IAT sensor in that intake tube and its grommet are not leaking air.

 

[adsm08]

Clean the MAF while you are at it too. A bad or dirty MAF can cause your issue, but it wasn't common on your year and is usually accompanied by other symptoms like odd idle, hard start, black smoke, and/or poor fuel economy.

 

[2.3LRNGR]

What the best way to check the IAC for leaks?

 

[db796]

Clean the MAF while you are at it too. A bad or dirty MAF can cause your issue, but it wasn't common on your year and is usually accompanied by other symptoms like odd idle, hard start, black smoke, and/or poor fuel economy.

yep i 2nd that, But could be a bad EGR