Also a cause of a P0171 can be a worn out intake manifold gasket! Under that code it can require more research and diagnosing to figure out exact cause! Good video and explanation!
I have had toyota camrys before with the codes and have bought the oxygen sensors online which is a mistake. The codes came back. I took it to my smog guy and he told me to always buy them from oreillys or autozone "denso" brand. I never had a problem since☝️unfortunately most cases each sensor is over $100 but hey
I appreciate you taking the time to go through your steps but would recommend against blindly changing parts because there are many and the cost adds up quickly. With a p0171 either you're getting too much air (unmetered passed the MAF) or too little fuel. Given that the combinations could be numerous. The best advice would be to get a good scan tool and learn about fuel trims so you can interpret data. Your friend had experience and could tell it was sluggish and confirmed the fuel pressure was low before replacement. You wouldn't want to blindly replace the fuel pump only to find it was the fuel filter, fuel pressure regulator or clogged injector.
I guess Im asking randomly but does someone know a trick to log back into an Instagram account?? I somehow lost my login password. I would appreciate any tips you can give me.
@Brayan Chandler I really appreciate your reply. I got to the site on google and I'm trying it out atm. Takes a while so I will get back to you later with my results.
Thank you for posting this. My light just came on today , and you mention very important thing about shift from gear 1_2 or 2-3, ... I have the same thing. I am going to test pump pressure. My car has 250 K miles
4 cylinder engines would always have codes regarding bank 1. Only vehicles that would have any codes referring to bank 2 would be V6, V8, V12, and so on with a left and right bank. Bank 1 is the drivers side and bank 2 is the passenger side. When talking about upstream and downstream sensors, the upstream sensor would be bank (1 or 2) sensor 1 and the rear sensor would be bank (1 or 2) sensor 2. You made mention early in the video that mixed up the designation of the sensors.
Well, all tolled you did ok. Had you gone to a shop, diagnosis fee would have been at least 1 hour; say $120. Then, you would have paid probably $270 for fuel pump plus labor. Ultimately, you still saved a few bucks, and now you have a known-good MAF and O2 sensor in your tool box for future troubleshooting adventures.
Hi @williamkincaid. Thanks you for your detailed video, is it possible to help me with a link to the fuel pump you ordered and I am wondering if you also changed the strainter along with the fuel regulator? I definitely have the same issue. Thanks again.
My Camry probably same thing fuel trim is not right has 322.000 miles on it could be why is PO2338 comes up and PO136 before that? I wunder that Toyota for you hard to figure out but good cars too
These codes tell you exactly where the problem is. I'm sure it's the oxygen sensor. You have to buy them from oreillys or autozone tho. Never buy them online. They usually don't work. Gotta buy them in person
I have same check engine P0171 ( system too lean in bank 1). my car toyota camry 2009 LE 2.4 Ltr. I have replaced with new fuel pump, new 02 sensor upstream,downstream both, new mass air flow sensor, new all 4 spark plug. but still the issue not resolved. while I run car for 10 to 20 minutes the error show up. I reset the check engine by OBD machine. but still after running 15 -20 minutes show up again. what else I can do now to resolve permanently?
Took it to crappy used car dealership mechanic THREE TIMES! Same code keeps coming back. So annoying. Guessing game at this point. Car is 2007 Corolla 130k miles
I want to say yes definitely cause i just changed mine and only 1k after oil change & mechanic said i blew through 2 quarts. 🤔 Definitely putting a new fuel pump in.
@@williamkincaid3222 Mines an 09, she doesn't burn much when fuel pump works properly. Maybe a quart around 4k after oil change. Lots of cars burn oil. My F350 6.0 doesn't burn but does leak sum. 🤣
“CHEAP CHINA CRAP” Thought I would be smart and save money to buy cheap crap off eBay… I learned the hard way….always buy Toyota parts… It will save you a lot of time and avoid a big headache when you change one part and then two more codes pop up
😂😂 Question, you’re not embarrassed that you’re just throwing parts in a car, you say you test the parts but if you truly test of the parts you would know if they are bad, most p0171’s r a simple vacuum leak, FREE!!😂😂
@@williamkincaid3222 I don't mind replacing things when I know they are this old. Preventive maintenance. Small cost for unwanted suprises in the near future.
![Engine Fault Code P0171 - System Too Lean Bank 1! [Symptoms, Causes, and Fixes]](/img/n.gif)
Also a cause of a P0171 can be a worn out intake manifold gasket! Under that code it can require more research and diagnosing to figure out exact cause! Good video and explanation!
I have had toyota camrys before with the codes and have bought the oxygen sensors online which is a mistake. The codes came back. I took it to my smog guy and he told me to always buy them from oreillys or autozone "denso" brand. I never had a problem since☝️unfortunately most cases each sensor is over $100 but hey
I appreciate you taking the time to go through your steps but would recommend against blindly changing parts because there are many and the cost adds up quickly. With a p0171 either you're getting too much air (unmetered passed the MAF) or too little fuel. Given that the combinations could be numerous. The best advice would be to get a good scan tool and learn about fuel trims so you can interpret data. Your friend had experience and could tell it was sluggish and confirmed the fuel pressure was low before replacement. You wouldn't want to blindly replace the fuel pump only to find it was the fuel filter, fuel pressure regulator or clogged injector.
I still haven't fixed my car. My ltft increases when I accelerate.
I guess Im asking randomly but does someone know a trick to log back into an Instagram account??
I somehow lost my login password. I would appreciate any tips you can give me.
@Lucian Frederick instablaster ;)
@Brayan Chandler I really appreciate your reply. I got to the site on google and I'm trying it out atm.
Takes a while so I will get back to you later with my results.
@Brayan Chandler It worked and I now got access to my account again. Im so happy:D
Thank you so much you really help me out!
Thank you for posting this. My light just came on today , and you mention very important thing about shift from gear 1_2 or 2-3, ... I have the same thing. I am going to test pump pressure. My car has 250 K miles
This was a very detailed video because I am having the same issues. Kudos
4 cylinder engines would always have codes regarding bank 1. Only vehicles that would have any codes referring to bank 2 would be V6, V8, V12, and so on with a left and right bank. Bank 1 is the drivers side and bank 2 is the passenger side. When talking about upstream and downstream sensors, the upstream sensor would be bank (1 or 2) sensor 1 and the rear sensor would be bank (1 or 2) sensor 2. You made mention early in the video that mixed up the designation of the sensors.
Have a 2005 RAV4 with that error code too. This was helpful
I have same issue with my camry, , how much it cost the fuel pump and where?
thanks.
Denso fuel pumps don’t die to quickly how many miles did you have on it when this problem started
Well, all tolled you did ok. Had you gone to a shop, diagnosis fee would have been at least 1 hour; say $120. Then, you would have paid probably $270 for fuel pump plus labor. Ultimately, you still saved a few bucks, and now you have a known-good MAF and O2 sensor in your tool box for future troubleshooting adventures.
My was the ignition coil I bought generic brand from EBay doesn’t work well and replace for original Toyota Denso work great....
Thank for you video i have the same issue my car after runninig 30 minutes and i want to start 10 min. Later does not want start
Thnxs you share with us. It's solve my car issue.
I have the same ploblem this video is goint help me thanks 👍
Hi @williamkincaid. Thanks you for your detailed video, is it possible to help me with a link to the fuel pump you ordered and I am wondering if you also changed the strainter along with the fuel regulator? I definitely have the same issue. Thanks again.
You’re welcome. I got it at rockauto.com, just put in year make and model. It comes with a new strainer attached so it’s all one unit.
@@williamkincaid3222 Yeah i tried it but couldnt find a one unit assembly, pump and strainer in one side while the filter in another.
My Camry probably same thing fuel trim is not right has 322.000 miles on it could be why is PO2338 comes up and PO136 before that? I wunder that Toyota for you hard to figure out but good cars too
Great video...same thing happened to me with the code and having the parts replaced in my 2004 Corolla. 😮and It still has the stupid code.😢
Injectors
Bro im going through the same process. Already replaced the MAF, 02 sensor, and about to do the pcv valve.
These codes tell you exactly where the problem is. I'm sure it's the oxygen sensor. You have to buy them from oreillys or autozone tho. Never buy them online. They usually don't work. Gotta buy them in person
I have same check engine P0171 ( system too lean in bank 1). my car toyota camry 2009 LE 2.4 Ltr. I have replaced with new fuel pump, new 02 sensor upstream,downstream both, new mass air flow sensor, new all 4 spark plug. but still the issue not resolved. while I run car for 10 to 20 minutes the error show up. I reset the check engine by OBD machine. but still after running 15 -20 minutes show up again. what else I can do now to resolve permanently?
Did you fix?
Nice job. Thanks for the information 👍
Your intake manifold gasket could have been leaky as well
I'm not angry that I replaced the parts though...the ones removed were really bad shape. They had to be thrown away.
Took it to crappy used car dealership mechanic THREE TIMES! Same code keeps coming back. So annoying. Guessing game at this point.
Car is 2007 Corolla 130k miles
Probably the purge valve sticking open.
Is this the reason why my car is losing oil? Autozone checked and told me need to replace sensor bank 1 sensor 1
Is it a Camry form around 2007?
I want to say yes definitely cause i just changed mine and only 1k after oil change & mechanic said i blew through 2 quarts. 🤔 Definitely putting a new fuel pump in.
Older Camrys have an oil burning issue from piston rings. Too expensive to fix.
@@williamkincaid3222
Mines an 09, she doesn't burn much when fuel pump works properly. Maybe a quart around 4k after oil change. Lots of cars burn oil. My F350 6.0 doesn't burn but does leak sum. 🤣
Thanks for this
“CHEAP CHINA CRAP” Thought I would be smart and save money to buy cheap crap off eBay… I learned the hard way….always buy Toyota parts… It will save you a lot of time and avoid a big headache when you change one part and then two more codes pop up
Parts shotgun !
Still Better than a TH-cam troll.
Big Time guest.
Big time spell check.
2006 chevy PVC valve
😂😂 Question, you’re not embarrassed that you’re just throwing parts in a car, you say you test the parts but if you truly test of the parts you would know if they are bad, most p0171’s r a simple vacuum leak, FREE!!😂😂
Easy player! We are all learning. I’m trying to help people for FREE. If you can do better - prove it.
@@williamkincaid3222 I don't mind replacing things when I know they are this old. Preventive maintenance. Small cost for unwanted suprises in the near future.
Mine was actually da fuel pump
Probably the purge valve sticking open.
That's what I'm thinking