Freaking P0125
#31
Pole Position
Thread Starter
Okay, I think I am getting too much hot air in my intake. If I take my foot off gas on high speeds the car starts to jerk [like it is chocking on fuel mixture] and immediately throws P0171 and P0125. I already replaced the MAF sensor with a remanufactured one, but it still could be defective. I am thinking to take the entire throttle body out, clean it, silicone TB-to-manifold gasket, and reassemble everything again. I still have no idea now P0125 related to P0171.
#32
Pole Position
Thread Starter
I changed my mind. This does not make sense. If leak was in throttle body it would be giving same stuff on idle. I will first try to replace MAF sensor again.
This is like "do it yourself", nobody is helping me on this one.
This is like "do it yourself", nobody is helping me on this one.
#34
Pole Position
Thread Starter
#35
Super Moderator
#36
Pole Position
Thread Starter
What numbers should I ask for? I doubt that they will print me graphs and 10-page summary of what is going on. Wanna talk to my main man? I will give you his number His name is Juan Rivas
You know what would be cool? To borrow a working MAF sensor from someone near DFW with 1MZ-FE, drive with it for 10-15 miles and see how the parameters are different. But doubt it is possible in US. In Russia I would resolve everything in one day. 80% of mature drivers are DIY, may be it is a cultural difference, may be it is genetics ;-)
PS: Guys, I am just kidding, please don't get offended
You know what would be cool? To borrow a working MAF sensor from someone near DFW with 1MZ-FE, drive with it for 10-15 miles and see how the parameters are different. But doubt it is possible in US. In Russia I would resolve everything in one day. 80% of mature drivers are DIY, may be it is a cultural difference, may be it is genetics ;-)
PS: Guys, I am just kidding, please don't get offended
#37
Super Moderator
What numbers should I ask for? I doubt that they will print me graphs and 10-page summary of what is going on. Wanna talk to my main man? I will give you his number His name is Juan Rivas
You know what would be cool? To borrow a working MAF sensor from someone near DFW with 1MZ-FE, drive with it for 10-15 miles and see how the parameters are different. But doubt it is possible in US. In Russia I would resolve everything in one day. 80% of mature drivers are DIY, may be it is a cultural difference, may be it is genetics ;-)
PS: Guys, I am just kidding, please don't get offended
You know what would be cool? To borrow a working MAF sensor from someone near DFW with 1MZ-FE, drive with it for 10-15 miles and see how the parameters are different. But doubt it is possible in US. In Russia I would resolve everything in one day. 80% of mature drivers are DIY, may be it is a cultural difference, may be it is genetics ;-)
PS: Guys, I am just kidding, please don't get offended
In Mexico, nobody is a mature driver. It is a never ending process of maturing. We incidentally joke down here that it is something in the water.
#38
Pole Position
Thread Starter
They are not constant numbers, they are graphs.
You want to know averages?
Anyway I will get everything possible from them and post it here.
#39
Super Moderator
I know that, but when I use the advanced scanner my uncle's friend has, I can see numbers coming across from both banks and I attempt to note highs and lows.
Now, if they are going to give you more than that, that would be even better.
Ron
#40
Pole Position
Thread Starter
I Finally Fixed This!
A/F Heater Fuse was misplaced inside the fuse box. Mechanics accidentally put it in "spare" slot.
Drove for 30 miles today. No codes.
23.0 MPG cruising at 80 MPH with A/C on.
24.1 MPG cruising at 60 MPH with A/C on.
24.9 MPG cruising at 60 MPH with A/C off.
A/F Heater Fuse was misplaced inside the fuse box. Mechanics accidentally put it in "spare" slot.
Drove for 30 miles today. No codes.
23.0 MPG cruising at 80 MPH with A/C on.
24.1 MPG cruising at 60 MPH with A/C on.
24.9 MPG cruising at 60 MPH with A/C off.
#41
I Finally Fixed This!
A/F Heater Fuse was misplaced inside the fuse box. Mechanics accidentally put it in "spare" slot.
Drove for 30 miles today. No codes.
23.0 MPG cruising at 80 MPH with A/C on.
24.1 MPG cruising at 60 MPH with A/C on.
24.9 MPG cruising at 60 MPH with A/C off.
A/F Heater Fuse was misplaced inside the fuse box. Mechanics accidentally put it in "spare" slot.
Drove for 30 miles today. No codes.
23.0 MPG cruising at 80 MPH with A/C on.
24.1 MPG cruising at 60 MPH with A/C on.
24.9 MPG cruising at 60 MPH with A/C off.
#43
Pole Position
Thread Starter
I will post pictures of the fuse and how it was misplaced, tomorrow. It is too dark to take photos right now.
#44
Does not p0125, say that the EFI coolant sensor is not reaching a sufficient temp. for the system to go to closed loop operation. There is a separate sensor for the efi system, that has no bearing on what the temperature guage is reading. I have a 93 ES300, but I am pretty sure that all the engines probably have the same sensor..there are many temperature sensors on the engine so get the right one. If the computer does not sense the coolant temp. is right to go to closed , it will not run right, the mileage will suffer, and there mite be other driveability issues.
#45
Driver School Candidate
Join Date: Jun 2012
Location: Texas
Posts: 5
Likes: 0
Received 0 Likes
on
0 Posts
Hey Guys. Need help. 01' ES300 I've changed both A/f sensors. Checked a/f fuse and it is good. Still getting P1135 and 1155 codes. Next thing to check from what i've read is the a/f relay in the fuse box. I don't know which 1 it is??? There is no a/f relay that I can see. I've pulled both the HTR fuse and relay, one is a 50 amp box fuse and the other is a box relay. Is this the 1 that needs to be checked? How can u tell if the relay is bad?? Supposedly they say if this relay is good, then they say the ECM needs to be replaced I believe. Any help would be greatly be appreciated.