I have already done by basic research on these cars. However, youre unlikely to see that translate to cheaper fuel in the uk. I have a 2006 ford focus and lately when i start my. Vacuum leaks with the ford focus, one of the most common cause for the p0171 code to show is a vacuum leak. Mk3 question for those with 5 speed manual idle related. Ford focus free shipping to commercial business only. The how can you fix this depends on which components in the system are malfunctioning and because there are multiple components involved, you have to go through a step by step exam.
I also replaced myself the fuel filter,air filter,plug wires,both o2 sensors and gas cap,i still had the light. What could be better than a highquality ford focus fuel pump offered. Available with myriads of engines options and trim lines, the focus is one the bestselling cars from ford both in america and europe. Engine code p0171 car stalls when comes to a full stop but will start right back up odb code p0171 system to lean ford 2005 focus question. You can see in the manual that ford has a special 02 wrench. P0172 error on a ford focus ask honest john honest john. Ford focus service repair manual ford focus pdf downloads. This 05 focus had missfire and lean fault codes due to leaking egr valve.
Print, read or download a pdf or browse an easy, online, clickable version. It is letting you know that there is an issue with the wiring or harness going to the sensor, or the sensor itself is bad. I erased all trouble codes drove vehicle 10 miles and p0401,p2195 came back. Ford focus p0171 obdii trouble code diagnosis drivetrain. These codes commonly occur on many ford vehicles, and are set when the powertrain control module pcm sees the airfuel mixture. Engine code p0171 system too lean bank 1 ford focus. But i still have some doubt, like engine reliability, or any other common problems that i should expect. When i would sit at a light at idle it would idle down very. P01 is a common obdii code that occurs in many vehicles, including the ford focus. If you need some work done on a ford vehicle, then you will find all the information you need in a ford service manual. Its hard to find a p0171 leak on these newer cars because of the plastic intake manifolds. P0171 cel system too lean bank 1 ford focus st forum. System too lean p0171, p0174 vacuum leak quick test ford.
P0171 ford tech notes if the p0171 is combined with the p0174 code, its very likely that the problem is caused by an intake leak. 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 rearwheel drive. Find your owner manual, warranty here, and other information here. Complete manual transmissions for ford focus for sale ebay. Details on causes of dtc p0171 and troubleshooting steps. My 2005 focus zx3 is giving codes p0193 and code p0171 answered by a verified ford mechanic.
P0171, p0174 check engine codes possible electrical problem. Checking the long term fuel trim values for bank 1 and bank 2 with your scan. Download your free pdf file of the 2005 ford focus on our comprehensive online database of automotive owners manuals. If there are no intake leaks, the next step is to replace the air filter and clean the air flow meter. Ford focus p06 engine trouble code when the check engine light comes ford focus p06 code on the first you should check is the gas cap. Having the trouble code p0171 system too lean in your car. It is important to complete the entire diagnostic process when diagnosing p0171. Driving a car with the code p0171 can cause more damage to the engine over time, as when the engine runs lean, the combustion temperature is higher. I have a 2005 ford escape that show s a p0171 obdii code and p2195 code. Take a look around and see if you can find the vacuum leak. I have checked the pcv line, no cracks, replaced the pcv valve 2 months ago, looked at i think all the vacuum lines i think and cannot find the problem. Begin with the vehicle parked on flat ground in park with the emergency brake set.
I tried cleaning the mass air flow sensor, tightening caps, looking for vacuum leaks on my 2005 ford focus zx3 s, 2. There are many things that can cause the p0171 trouble code on the ford focus. Any air leaks in the snorkel between the maf and the throttle body can definitely cause a p0171. P0171 2009 ford focus tech notes if the p0171 is combined with the p0174 code, its very likely that the problem is caused by an intake leak. Ford focus is a small family car from ford motor company since 1998. Although you can apply this info to any ford vehicle with a v6 or v8, this info concentrates on the ford 4. Come join the discussion about svt performance, modifications, classifieds, troubleshooting, maintenance, and.
P0171 ford fuel injection system too lean bank 1 with the airfuel mixture ratio selflearning. A forum community dedicated to ford focus owners and enthusiasts. Lean condition diagnosis on a ford p0171 p0174 duration. Ive had this problem for 2 years now, every winter its the same thing, whenever the car is running and i press the clutch, the revs go up to 2000 and stay there until the car comes to a complete halt, at which point, it drops down to normal. P2195 and p0171 occur when the engine is running too rich too much fuel relative to air charge and the engine feedback system is unable to compensate.
So this engine code article applies to toyota, chevrolet, ford, nissan, honda, gmc, dodge, etc. P0171 on ford focus ricks free auto repair advice ricks. Another known issue in ford vehicles is a vacuum leak from a ripped through. P0171 fuel trim system lean bank 1 p0171 ford obdii trouble codedescription. The whooshing sound is conducted by the plastic manifold, making it harder to listen for a leak. Consult your service manual for its location if you need help. Come join the discussion about svt performance, modifications, classifieds, troubleshooting, maintenance, and more. View and download ford focus 2005 o wners manual online. I have a 2000 focus zx3 and when i drive it runs great but when i stop at a stop signal or stop sign it starts to lose power and sometimes shuts off. I see this code a lot on fords and it ss nearly always a vacuum leak in a rubber hose or connector. I have a 2005 ford escape that shows a p0171 obdii code and. Audio systems replacement keys the check engine gauges vehicle symbol glossary instrument cluster passive antitheft system warning lights and chimes. Step 1 once a check engine or service engine soon light has determined a lean engine code has materialized, a repair procedure inspection is needed.
Im thinking the maf sensor is dropping out at the low end. Ford code p0171 severity moderate it is okay to drive your ford with p0171 for a short period of time, but driving with this code for an extended period of time can overheat the engine and cause internal engine damage. The p0171 code means that, on the first bank of the engine, the fuel system is running weak or a vacuum leak exists near this side of the engine. The obdii trouble code p0171 system too lean bank 1 means that the engine airfuel mixture is too lean, or there is too much air and too little fuel. New ford bronco likely getting sevenspeed manual transmission. Code p0171 system too lean bank one the focus had a problem with the pcv tube collapsing. The check engine light just recently came on and it only read one code p0171 ive changed the maf sensor the o2 sensor the spark plugs and the air filter it rides better but it still loses power when stopped. Ford f150 p0171 p0174 trouble codes vacuum leak water test. What does code p0171 on a 2005 ford focus means answers. Access quick reference guides, a roadside assistance card, a link to your vehicles warranty and supplemental information if available. System too lean bank 1this lack of fuel is known as a lean mixture. A ford p0171 is a lean code fpr cylinder bank 1, and p0174 is a lean code for cylinder bank 2. You can search the internet for a free repair guide and find a lot of useful information, but this is not always possible if you are on the road at the time. How to fix a lean exhaust codes in under 15 minutes.205 259 906 1076 325 1348 123 174 803 741 1279 1547 837 1280 1325 1320 152 514 1070 1260 1206 793 1424 6 1058 301 773 1096 726 1395 169 51