What do you need to know about Ford p0155?

P0155 Ford Description. Oxygen Sensors (O2S) or Heated Oxygen Sensors (HO2S) need to reach a minimum operating temperature of 750 degrees F to produce an accurate voltage signal. The faster the heated oxygen sensor reaches that temperature the faster the sensor will start sending an accurate signal to the Engine Control Module (ECM).

What does p0141 mean in Powertrain Control Module?

Code P0141 occurs when the powertrain control module tests the downstream heated oxygen sensor’s heater circuit on Bank 1 and detects a short in the circuit or excessive resistance in the heater circuit. P0141 Symptoms Check Engine Light is on

What are the symptoms of the p0135 code?

What are the symptoms of the P0135 code? 1 The ECM will not have any O2 sensor feedback until the O2 sensor gives an input. 2 The engine may run rough until the exhaust gets hot enough to activate the O2 sensor to start giving an output voltage. 3 The Check Engine Light will be illuminated indicating a problem.

Is the downdraft O2 sensor still coding for p0141?

Ok, so far I have replaced the downdraft O2 sensor TWICE, replaced the catalytic convertor, replaced the updraft O2 sensor and done a set of plugs and wires. The car is still coding for p0141 downdraft O2 sensor failure. It is a 2000 Ford Focus SE. Can ANYONE tell me what else this could POSSIBLY…

What are the optional features of a Ford Explorer?

The Limited standardized several optional features introduced for the 1994 Explorer, including an anti-theft system, keyless entry, and automatic headlights.

What kind of differential does a Ford Explorer have?

All Explorers were equipped with the Ford 8.8 axle in either a limited slip differential, or open version with a variety of available gear ratios. Four-wheel-drive front axles were the TTB (” Twin Traction Beam “) Dana 35 with some Dana 44-spec components.

What kind of engine does the Ford Explorer have?

For 2000, Ford added flex-fuel capability to the Explorer for the first time. A Mazda-produced 5-speed manual was standard with the 4.0L OHV V6 engine; the SOHC V6 was not offered with a manual transmission until 2000, receiving a heavier-duty version of the Mazda-sourced 5-speed.

What’s the trouble code for a heated oxygen sensor?

P0141 Heated Oxygen Sensor (HO2S11) Heater Circuit Bank 1 Sensor 2. P0155 Heated Oxygen Sensor (HO2S11) Heater Circuit Bank 2 Sensor 1. P0161 Heated Oxygen Sensor (HO2S11) Heater Circuit Bank 2 Sensor 2. Really bad gas mileage. Won’t pass state mandated emission testing.

What does p0135, p0141, and p0161 mean?

Won’t pass state mandated emission testing. As mentioned at the beginning of the article, P0135, P0141, P0155, and P0161 DTCs share one specific and common thread: a Heater Circuit Malfunction. What does this mean? Before I jump into an explanation of what the codes mean I’ll share with you some basic working theory of how the O2 sensor works.

Can a ho2s heater cause a p0155 code?

From an open HO2S heater ground circuit to a defective HO2S heater, many issues can trigger the P0155 code. Unless you are an automotive expert, making an accurate diagnosis can be difficult. So it’s best to let a professional handle the task.

What do you need to know about Ford p0155?