DTC P0172 PDF

Definition of error code P and P – System too Rich (Bank 1 and Bank 2) . Read emissions expert information and diagnostics for fault code P and. Diagnostic Trouble Code (DTC) P Fuel Trim System Too RichDiagnostic Trouble Code (DTC) P Fuel Trim System Too Rich – United Kingdom | BBA. The fact that it’s throwing that code means that it’s trying and unable to adjust sufficiently to keep the air/fuel ratio correct. 2 is easy to check-.

Author: Gotaur Akilabar
Country: Kazakhstan
Language: English (Spanish)
Genre: Literature
Published (Last): 1 June 2011
Pages: 143
PDF File Size: 13.43 Mb
ePub File Size: 17.21 Mb
ISBN: 919-7-19705-524-8
Downloads: 1068
Price: Free* [*Free Regsitration Required]
Uploader: Marisar

How can we help? These conversion tables will help. Code P mainly applies to V6 or Drc engines because 4-cylinder engines generally have only one bank, though there are a few exceptions.

13C-DTC P System too Rich

Looking at the freeze frame first than performing a road test and capturing data is dhc best way to diagnose this problem. Wondering how one bank is too lean and other is too rich.

A rich condition can also cause misfires from “overfueling” too much fuel for the Ignition Spark to burnwhich puts raw fuel HCs into the atmosphere. Lucas 18 years of experience.

The first step in this 0p172 is to obtain Be sure to verify proper Fuel Pressure under various driving conditions. System Too Rich Bank 1. Before we get into the main causes of P, let’s explore why this code matters.

A Thermostat stuck in the open position can mechanically cause a code P, especially in cold climates. Shop around for the best dealI will post if thit is the cause.

  ANILLO SCHATZKI PDF

P0172 OBD-II: System Too Rich

P can be caused by a lot of things. When the Mass Air Flow Sensor sees this Barometric reading, it adjusts its Air Density table and then “over reports” the actual amount of air entering the engine.

However, it should be noted that a “rich” running engine can also have little or no smell, since CO itself is odorless. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation.

Valve cover and intake gaskets are all new. It is around a Hour Job. Essentially, this means that the Air Flow Sensor is telling the computer that much more air is entering the engine than actually is.

I have codes po, and pop up.

Diagnostic Trouble Code (DTC) P Fuel Trim System Too Rich – United Kingdom | BBA Reman

Not enough air is coming in. When a code P is set, it means that the Fuel Trim is anywhere from percent to as low as percent compensated. You didn’t post which engine you have.

If it’s an AFR sensor it may be too expensive to just swap out and try. If you have a bank that is running too rich, which is unfortunately a very generalized condition, one or more of the following conditions must be true: By VisitorFebruary 16, It is okay to drive a vehicle with P for dtf short period of time, but driving with this code for an extended period tdc time can overheat the engine and cause internal engine damage.

  BHAGYA SUKTAM PDF

P0172 OBD Trouble Code

The vehicle may have trouble idling, especially when warm or when sitting at a stoplight. If the check engine light persists after this diagnostic process, it is most likely time to change the oxygen sensor.

Unburned droplets of raw fuel that smell, affect breathing, and contribute to smog CO Carbon Monoxide: When it gets low, Inspect your air intake box and air intake snorkel for any obstructions that would prevent sufficient air flow in the engine. You can either walk into a store and have them look it up in their computer, or you can search for the part on their web site, which will prompt you for as much information as it needs to narrow down your choices. Also, if it is an oxygen sensor – are they all the same?

Can I order the wrong one for my car or can I just get the cheapest? As the lambda controller supersedes the adaptation threshold, the two time counters one for the rich side and another one for the lean side will be kicked started. CO pollution, which is poisonous and helps create ozone, is caused by vehicles that are running too rich.