does anyone know about PO 125 air fuel sensor? I have replaced 2 and is showing bad again? please help! thanks cici

 

I went to Auto Zone today to find out the problem with my car. The check engine light came on.After they checked it they came up with these three codes . ...p0125....p1135....01130....the p0125 code said insufficent coolant temp.for closed loop fuel control...The p1135 code said air fuel sensor heater circuit malfunction... open or short circuit condition. this is on bank 1 sensor 1..........The p1130 codesaid air fuel ratiosensor circuit range/performance malfunction[bank1 sensor 1] .........probable cause fuel pump , injector or pressure regulator fault..........vacuum leak on engine........faultyafsensor heated circuit........failed af sensor

 

P0125 Insufficient coolant temperature and has a faulty ECT.One cause could be a fault in the coolant temp sensor or low coolant in the system.Clean the small air temp sensor in the air cleaner box.Also,a rich air/fuel mix is not good for the engine as the fuel will clean off the oil supply to the pistons and cause damage.

 

A toyota dealership found the code p01135--air fuel ratio sensor. I would like to know where it is located and what it looks like. Toyota wanted to charge me a arm and a leg. Is this part available through a local parts shop or does it have to be ordered by a toyota dealer? thanks and PLEASE HELP

 

The Air/Fuel Ratio Sensor is the very first O2 sensor located in the exhaust. There are multipul O2 sensors in the exhaust but it is the very first sensor or Bank 1 sensor 1. As far as I know the dealership is your only option. They are easy to install, I would buy it from Toyotas parts department and install it yourself to save some labor cost. A problem that you will run into when doing this is that even when the new part is installed, you will most likely have a check engine light because the code will be stored in the computer, the light needs to be reset and the code has to be cleared. You clear the codes by using the scanner that was used to pull the code. Sometimes if you replace the part and disconnect the battery for a couple of minutes, the code will be cleared. Is it a V6 or V8?

 

Hi folksIve seen some induction kits that has a small pipe where the air intake temp sensor can be plugged into.Does the aygo require this to be done as well or can it be left wherever its at? Many thanks

 

well it was not running that rich so there is no fuel in the oil checked it as well...car is due for a service in 3 months so will have it all done then as im not driving her daily anymore so its ok

 

ok found some intresting info in a thread from what i assume the throttle stop was being use to set the idle and the scrue that turns into the tb air bypass is actually to be use to set the idle and the air fuel mix is set in the fuel distributor with a 3mm hex key or somehting like that...? please tell me i have it right now ?

 

too bad there was not any pictures ...would help a great deal

 

Okay who makes one to work with the phatom? and where do I mount it?
So the Air/fuel reading from just the guage is usless?