Question about Ford Cars & Trucks
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Posted on Jan 02, 2017
Start with smaller problems and check the fuel pressure regulator, the mass air flow sensor for these vehicles is pretty pricy. Is the check engine light on? If so, head to your nearest auto zone and have them check for trouble codes. If the check engine light isn't on, its not likely your mass air flow sensor
Posted on Aug 20, 2009
SOURCE: loss of power. changed gas
Check your service record for the last catalytic converter change.
Most cat. can last up to 140,000 miles.
A muffler shop can check the inlet and outlet temperature to verify the functionality of the unit.
The exist temperature must be higher than the inlet.
Posted on Aug 11, 2011
Try changing the TPS (Throttle Position Sensor). This has a lot of influence on the idle. Other than that, look for a broken or split vacuum hose.
Posted on Dec 07, 2014
Testimonial: "Thanks Bryan...Silly question...is that the same as what some are calling an Idle Air Control valve?"
SOURCE: code p0171 on 98 ford ranger
If you have no vacuum leaks, changed the MAS and still have issues, about all that's left is the fuel injectors, pressure regulator, or fuel pump. The logical course is to check the pressure at the regulator. If it is correct, it would then be an injector issue.If pressure is not correct, then the fuel pump or regulator are bad. Regulators are not expensive to change. Fuel pumps typically more difficult. If you have not one so, you could try injector cleaner... But if you find the pressure is good to the injector rail, then the likely problem is the injectors themselves.
Posted on Jan 03, 2015
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