code 136, now what

[Mustangless]

Ran codes on my car again and I got 10, 111, 536, 136 and 632. THe only one that means and thing is 136.

136 Heated oxygen sensor indicates lean condition, left side.

Before I get all happy about maybe figuring out my problem I need to say. I did not warm the car before scanning, this doesn't matter does it?

Does this mean my o2 sensor is bad, or that I am running lean? If my o2 is bad, is the left the passanger side? I replaced the drivers side about 3k miles ago, never replaced passangers. If my car is lean, how do I fix that?

symptoms, bad performance, and terriable gas mileage.

what has been done. New drivers side o2, cleaned maf, plugs, wires, cap, rotor, fuel filter, air filter, ran seafoam and timing is on 12.

 

[mo_dingo]

The only way to run codes is to get the car to operating temperature......so you need to reset the codes, drive it for 10 miles, then do the koeo and koer codes with the motor still warm. That is the only way to can sucessfully run codes.

Also, on that 136 code, your O2 sensor is telling you that that bank is running lean, and you need to figure out why. my guess is one of your spark plugs will be white as chalk, and you have a busted fuel injector or wiring to it.
Scott

 

[Mustangless]

The only way to run codes is to get the car to operating temperature......so you need to reset the codes, drive it for 10 miles, then do the koeo and koer codes with the motor still warm. That is the only way to can sucessfully run codes.

Also, on that 136 code, your O2 sensor is telling you that that bank is running lean, and you need to figure out why. my guess is one of your spark plugs will be white as chalk, and you have a busted fuel injector or wiring to it.
Scott

When I changed my plugs about 2k miles ago they were white. How could I tell if I have a busted fuel injector, and how do I find go about look for bad wiring?

 

[HISSIN50]

When I changed my plugs about 2k miles ago they were white. How could I tell if I have a busted fuel injector, and how do I find go about look for bad wiring?

A cylinder balance test indirectly can help. If you pass all clear, the cylinders are all contributing to the cause. If not, check out the cylinder that is not RPM dropping when tested. NOTE that a cylinder that pops a CBT code is misfiring, but it is not necessarily injector related.

Furthermore, a noid light can be used to check injector firing (checks the harness and power and ground to the injector, but not the injector itself). The injectors get 12 volts key-on constant and a ground pulse when it is time to fire (the ground is computer controlled).

Good luck.

 

[mo_dingo]

Yeah, the only way to condemn one specific injector is to swap injectors and test the new cylinder. And the only way to test the computer's output would be w/ an oscilloscope.
Scott