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Toyota yaris 99 lamda probe bank1 too rich code p0172

Management light on

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 18 Answers

SOURCE: Check engine light. got 2 codes P0172 and p0175.

Unclip the 02 harness, then take out the 02 sensor. 5 minute job.

Posted on Mar 04, 2009

  • 753 Answers

SOURCE: 3 codes present on my 2002 Envoy. p0172, p0420, and p0340,

Track the p0340 first camshaft timing is very important and could possibly cayse your other codes,Call your local GMC dealer I think I remember a bulletin about this code.

Posted on Aug 23, 2009

  • 3640 Answers

SOURCE: Took the car in for the emissions test. FAILED

po-120 is--tps/pedal position sensor A curcuit malfunction. po172 is---system to rich (bank 1). po120 means that the tps is out of adjustment or it is bad. for po172 after you repair tps, it may be ok, if not change front oxygen sensor,

Posted on Nov 03, 2009

  • 1 Answer

SOURCE: i have a toyota rav4 2003 management light came on

toyota v6 that is california emission does not accept reading from any sensor that doesnt come from toyota even if it's denso they use different number denso that if u didnt get it from the dealer the light will come on and on again

Posted on May 07, 2010

alicantecoli
  • 22114 Answers

SOURCE: how to read continuity on 5wire lamda sensor

5 wires never seen one to be honest dont you mean 4 wires and a shroud wire if so i can tell you but never seen a 5 wire before ,what vehicle is this by any chance

Posted on May 11, 2012

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Peter. The dealer did diagnose the problem. They said the car needed all 3 oxygen sensors replaced. They were replaced and the car is now returning codes p0172 and p0175 which are the only 2 codes coming up when the check engine light came on. My question is if the dealer sold me the incorrect oxygen sensors could this cause the computer to incorrectly set the p0172 and p0175 rich fuel mixture codes. There are no other codes coming up. My plan at this point is to check and clean the MAF, check my fuel pressure, and also the TPS but I did not want to waste my time if it could possibly be that the new oxygen sensors where the problem. Any help would be appreciated.

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Speedometer sudenly stoppped working. now works intermittently. also shows check engine light. It is showing p0171 & p0172 codes. Lean and rich. seams like they contradict each other. occasionaly the...


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OBD II P0172 Fuel System Too Rich (Bank 1).P0172 - System Too Rich (Bank 1) Essentially this DTC means that an oxygen sensor in bank 1 detected a rich condition.
When the code says that the Fuel System is "too rich," it means that the computer has been subtracting more and more fuel, which is called Long Term Fuel Trim. Ideally, the Long Term Fuel Trim should be close to 1 to 2 percent. When a code P0172 is set, it means that the Fuel Trim is anywhere from -15 percent to as low as -30 percent compensated. When this happens, the computer knows that there is an improper condition in the control of the Fuel System.


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1996 chevy truck 5.7L has codes P0172, P0172 were


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po-120 is--tps/pedal position sensor A curcuit malfunction. po172 is---system to rich (bank 1). po120 means that the tps is out of adjustment or it is bad. for po172 after you repair tps, it may be ok, if not change front oxygen sensor,

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