PO171 & PO174 THATS THE CODE I'M GETTING IT SAY'S THAT IT RUNNING TO LEAN. HOW DO I FIX THAT?
Jan 19, 2008 at 1:25 PM
2001 Mazda Truck TROUBLE CODES
2001 MAZDA TRUCK
TROF
- MEMBER
- 2 POSTS
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RASMATAZ
- ✓ASE Certified Mechanic
- 75,992 POSTS
P0171/0174
A lean fuel condition can be caused by:
* Low fuel pressure due to a weak pump or leaky fuel pressure regulator. (use a fuel pressure gauge to check fuel pressure at idle)
* Dirty fuel injectors. (try cleaning the injectors)
* Vacuum leaks at the intake manifold, vacuum hose connections or throttle body. (Use a vacuum gauge to check for low intake vacuum)
* Leaky EGR valve. (Check operation of EGR valve)
* Leaky PCV Valve or hose. (Check valve and hose connections)
* Dirty or defective Mass Airflow Sensor (MAF). (Try cleaning the MAF sensor wires or filament with aerosol electronics cleaner. Do NOT use anything else to clean the sensor, and do not touch the sensor wires)
A lean fuel condition can be caused by:
* Low fuel pressure due to a weak pump or leaky fuel pressure regulator. (use a fuel pressure gauge to check fuel pressure at idle)
* Dirty fuel injectors. (try cleaning the injectors)
* Vacuum leaks at the intake manifold, vacuum hose connections or throttle body. (Use a vacuum gauge to check for low intake vacuum)
* Leaky EGR valve. (Check operation of EGR valve)
* Leaky PCV Valve or hose. (Check valve and hose connections)
* Dirty or defective Mass Airflow Sensor (MAF). (Try cleaning the MAF sensor wires or filament with aerosol electronics cleaner. Do NOT use anything else to clean the sensor, and do not touch the sensor wires)
Jan 19, 2008 at 1:29 PM
RASMATAZ
- ✓ASE Certified Mechanic
- 75,992 POSTS
Outbox :: Message
From: rasmataz
To: TROF
Posted: Sat Jan 19, 2008 1:42 pm
Subject: Re: TROUBLE CODES
One of those areas will knock out your problem if so comeback with a feedback that way everybody will learn from on it, on this make/model.
From: rasmataz
To: TROF
Posted: Sat Jan 19, 2008 1:42 pm
Subject: Re: TROUBLE CODES
One of those areas will knock out your problem if so comeback with a feedback that way everybody will learn from on it, on this make/model.
Jan 19, 2008 at 1:46 PM
I WOULD LIKE TO THANK rasmataz HE WAS RIGHT ON THE MONEY. IT WAS A VACUUM LEAK ON THE RUBBER HOSE ON THE INTAKE.
THANKS AGAIN.
THANKS AGAIN.
Feb 10, 2008 at 7:08 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.