ford ranger error code po171 Pinconning Michigan

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ford ranger error code po171 Pinconning, Michigan

In this article, I'll go into the basics of what causes these codes and I'll also offer you a testing strategy to successfully diagnose P0171 and P1074 diagnostic trouble codes. If the MAF sensor is dirty, the fuel trim at idle will probably be close to normal (plus or minus 3 to 5 range), but as engine speed increases up to Next, look at the fuel trim values while the engine is running. PCM's Adaptive Fuel Strategy has reached its Rich calibrated limit for bank 1.

One of the biggest misconceptions, about these two diagnostic trouble codes, is that they accuse the oxygen sensors as being BAD... The fix for dirty fuel injectors is to clean the injectors. That's right, these two codes do not identify the oxygen sensors as BAD. the air being sucked into the engine at this point (which is after the MAF sensor) is considered unmetered air.

We also cover the Explorer Sport Trac, Mercury Mountaineer, Lincoln Navigator, Mazda Navajo, Mazda Pickups, and the Aerostar. Let the cleaner soak in for several minutes, then give it another shot of cleaner. Also the vacuum hose that connects the fuel pressure regulator to the intake manifold can swell and leak vacuum where the hose connects to the manifold. Now, having said that, I've geared this article towards the person that owns a generic scan tool with Live Data capability Actron CP9580 Scan Tool).

so think safety all of the time. The PCM responds by increasing EGR flow, which may keep the EGR valve open longer than usual creating a lean condition in the engine. If the lean codes keep coming back, the MAF sensor may have to be replaced if the engine does not have a vacuum leak or fuel delivery problem. You can find this tutorial in Spanish here: Cómo Probar: Códigos P0171 y P0174 (4.0L Ford) (at:

These codes commonly occur on many Ford vehicles, and are set when the powertrain control module (PCM) sees the air/fuel mixture is running too lean (too much air, not enough fuel). These sensors have a very high failure rate once a vehicle has more than about 60,000 miles on the odometer or is more than five or six years old. The thing that's gonna' help you nail down the problem (and thus the solution) is to remember that these two Trouble Codes are only describing a condition in which the Computer An aftermarket replacement DPFE sensor costs less than $50 and usually gets rid of not only the P0401 code, but also the P0171 and P0174 codes, too.

For example: if the intake manifold gasket is bad and creating a vacuum leak... Hook up your scan tool, go to the PID data menu and look at the fuel pressure PID. Ford TSB 04-17-4 details procedures for checking fuel trim and looking for vacuum leaks. As a result, the engine runs lean and sets a P0171 and/or P0174 code (see Ford TSB 98-23-10 for details).

The effect on fuel trim would be the same as a weak fuel pump - close to normal at idle but going more positive (indicating a lean fuel mixture) as engine In this article, I'm gonna' explore several of the things and conditions that cause a Lean Condition. The vapors can leave a waxy coating on the sensor wire. The main sensors responsible for telling the PCM that there's a problem with the Air Fuel Mixture are the pre catalytic converter oxygen sensors.

Bank 2 is the one having the issue. At idle, the fuel trim may be normal to slightly positive. Usually this unmetered air, that the PCM thinks is entering the engine, is usually due to a very large vacuum leak... See Diagnose Fuel Pump for more information on how to troubleshoot fuel delivery problems.

Since 1996 we have been the #1 Ford Explorer resource on the Internet. A P0174 lean code for bank 2 is the cylinder bank on the LEFT (driver) side of the engine on Ford vehicles with a transverse-mounted V6 engine and front-wheel drive. If there are no intake leaks, the next step is to replace the air filter and clean the air flow meter. On 3.8L Fords with a split-plenum intake manifold, the port gaskets and isolator bolt assemblies for the upper plenum can deteriorate over time and leak air, often as a result of

Home, Auto Repair Library, Auto Parts, Accessories, Tools, Manuals & Books, Car BLOG, Links, Index Ford P0171 & P0174 Lean Codes Copyright AA1Car A Ford P0171 is a LEAN code for Thus, a bad sensor may set a P0401 code (insufficient EGR flow), or it may not set an EGR code but a P0171 and/or P0174 lean code instead. Now, in case you're wondering what the heck is unmetered air: Unmetered air is any air sucked into the engine after the mass air flow sensor (remember, the MAF sensor's job If fuel pressure is less than specifications, there is probably a problem in the fuel pump or fuel pump wiring circuit.

What are the symptoms on your vehicle for the P0171 Ford code? Bank 2 is the engine bank that holds the spark plugs for cylinders 5, 6, 7. Ask a question to our users or find an automotive repair shop near you to help fix the OBDII code Ask a Question Find a Shop Related Information Help Help Link to a website with information on how to repair: 1999-2003 Fords Windstar Code P01712004 FORD F150 P0171, P0174, P0301, Misfire and Lean ConditionUser Submitted Video What does Log in

The vacuum leak may be real or it may be a “perceived vacuum leak” caused by some failed sensor. The MAF sensor should be protected from outside dust and debris by the air filter, but sometimes the air filter doesn't fit real tight inside the housing and allows unfiltered air Vacuum leaks can occur anywhere in the intake plumbing downstream of the throttle body (throttle body gasket, intake manifold gaskets or vacuum hose connections to the intake manifold) You can use Any information is appreciated.

Several things can fool the PCM into thinking there is a vacuum leak, like a failing oxygen sensor or even a very dirty MAF sensor. The DPFE sensor is mounted on the engine, and is attached with two rubber hoses to the tube that routes exhaust gas to the EGR valve. Look at the fuel trim values at idle. In plain English, this means that the PCM is adding fuel like crazy to even out the Air/Fuel Mixture because it has detected a vacuum leak in bank 2.

Link to a website with information on how to repair: 1999-2003 Fords Windstar Code P01712004 FORD F150 P0171, P0174, P0301, Misfire and Lean ConditionUser Submitted Video What does this mean? Tech notes If the P0171 is combined with the P0174 code, it's very likely that the problem is caused by an intake leak. In plain English, this means that the PCM is adding fuel like crazy to even out the Air/Fuel Mixture because it has detected a vacuum leak in bank 1. LOW FUEL VOLUME DELIVERY Lean codes can also be set if the engine is not getting enough fuel.

This code is not set on four cylinder engines (no bank 2). Leave a comment below or tell us if the information above help you fix the code. Home Q&A Find a Shop Home Articles Find a Shop Glossary Sensors Location Q&A Tech Challenge For Shop Owners Shop Owners AutoCodes OBDII Code List P0171 FORD P0171 FORD - If the problem persists the front oxygen (O2) sensor may need to be replaced.It's a very common problem for the Ford Windstar.

The original equipment sensor has an rectangular aluminum housing about three inches long. Cleaning or replacing the sensor should make the code go away. In many instances, the MAF sensor can be successfully cleaned by spraying the sensor element with electronics cleaner. Fields Home | Main Index | Terms of Use Chrysler | Ford | GM | Honda | Jeep | Tools | Disclaimer ©

If the problem is not enough fuel, the underling cause may be a weak fuel pump, restricted fuel filter, leaky fuel pressure regulator or dirty fuel injectors. You may be wondering where bank 1 and bank 2 are located on the 4.0L Ford V6, well, using the illustration in the image viewer as a guide: Bank 1 is A P0171 lean code for bank 1 is the cylinder bank on the RIGHT (passenger) side of the engine on Ford vehicles with a V6 or V8 engine and rear-wheel drive. You can also use a scan tool to diagnose fuel delivery problems that may be causing a lean code.

P0174: System Too Lean Bank 2. Searches Page 1 of 2 1 2 Next > purehypeballer New Member Joined: December 6, 2005 Messages: 5 Likes Received: 0 Trophy Points: