How do I fix code P0170?

How do I fix code P0170?

What repairs can fix the P0170 code?

1. Correcting any condition that causes the engine to run rich.
2. Correcting any condition that causes the engine to run lean.
3. Replacing the powertrain control module.

What can cause a P0170 code?

The PCM may log the P0170 code for the following reasons: Contaminated Engine Oil (too long since the last oil change) A leaking injector. Excessive fuel pressure due to restriction along the fuel return line or a faulty fuel pressure regulator.

How do I fix code P0173?

What repairs can fix the P0173 code?

1. Replacing the mass air flow sensor.
2. Replacing the fuel pressure regulator.
3. Replacing the intake manifold gaskets.
4. Repairing or replacing the engine air filter intake system.
5. Replacing a vacuum line connected to the throttle body.
6. Repairing a leaking brake booster.

Can I drive with P0170 code?

You can continue to drive the car with this code. The code is basically for a rich fuel mixture. This can mean you may see some loss of fuel mileage, however the car should get you to your destination.

What is a fuel trim Bank 1?

Error Code P0170 is described as Fuel Trim Malfunction Bank 1. This means the PCM (powertrain control module, also known as ECM or engine control module) has detected a fuel trim outside the specified range set by the vehicle’s manufacturer. This can be a negative or a positive fuel trim.

Can a bad O2 sensor cause P0170?

If the O2 sensor says it needs more fuel, then the PCM will carry out a positive trim. Error Code P0170 is set when the PCM has detected an anomaly on fuel (fuel trim) that is outside the range of the vehicle’s specifications. This can be a negative or positive trim.

Where is the ECU on Astra H?

If it is the engine control ECU then it is behind the passenger front wheel inner splash guard.

What causes fuel trim malfunction 1?

What is a fuel trim?

What is Fuel Trim? Fuel trims are what engine control system use to compensate for all problems relating to air-fuel ratios (known as λ or lambda,) and combustion. The Electronic Control Module (ECM) or Powertrain Control Module (PCM) uses a few sensors to determine how much air is flowing into the engine.

What does the p0170 code on a Astra mean?

P0170 codes are a bit of a pain to track as it doesnt tell you what may be wrong. Only that the fuel trim is +/-25%. What you have now got to work out is why is it fueling wrong. It could be that the MAF is reading wrong therefor the ECU is compensating by alteing fuel trim. could be a air leak. dodgey o2 sensor. temp sensor.

What does it mean when your fuel trim code is p0170?

In writing this article I’ve added Mercedes-Benz-specific info since it seems that M-B (and VW) are most prone to having this P0170 surface along with misfire codes or other fuel trim codes. P0170 means there was a malfunction in the computer’s control of the air:fuel ratio.

What does a p0170 mean on a PCM?

When the fuel trims reach their rich correction limit, the PCM (Powertrain Control Module) sets a P0170, indicating a problem or malfunction in the fuel trims. It may also have a P0173 referring to the same malfunction but on bank two. Symptoms of a P0170 DTC may include:

Can a bad O2 sensor cause a p0170?

A bad O2 sensor could cause a P0170, or P0173. Repair cause of oil leak and replace oil-fouled O2 sensor. Among several codes my car has, one is P0447 which is listed as EVAP emission system – vent control valve circuit open. No idea as to where to start checking as i am not sure if this car has a sensor in the fuel tank.