Question about 2006 Pontiac Montana SV6

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Check engine light came on po 454 code came up ?

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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

  • 8 Answers

SOURCE: 2006 trailblazer po 411 code check engine light comes on and off over time is it a sensor or the air pump?

Check all your vacume lines one may have a crack in it

Posted on Apr 21, 2009

Molson02536
  • 3854 Answers

SOURCE: 2004 chevy aveo that the

P0128 - the thermostat may be stuck open or has anyone put a colder thermostat in the car,because once it starts to get cold it will throw a SES with a colder then stock thermostat. Replace the Thermostat should fix this problem.

PO700 is a code telling you there are codes in the TCM of some late model cars where the Transmission control module has been removed from the PCM the vehicles main computer , and basically it happens when the TCM has a issue within itself or the transmission that sets a code and it sends a request for the PCM to illuminate the SES or CHECK engine light. To get at the TCM codes requires in most cases the most up to date scanner software purchased after the cars model year and as of yet is still a little iffy. Standard OBD11 scanners will generally not be able to see these codes.

P1781 is set during engine start up when the ECM & TCM do not communicate properly during initial power up. It will only illuminate the service light if the condition occurs in 2 consecutive start cycles, but the DTC will be stored in the failure records after the first cycle.

Replace the Thermostat and go to a transmission shop that can read the DTC codes with a scanner and reset the ECM for clear the codes. Most Transmission shop will do that free of charge, if not turn the Ignition key's to the on position and and pull the ECM fuse out for 30 seconds and then place it back in. Turn the ignition keys to the off position for 10 seconds and then start the car, the engine may stall but let it. Just start the engine again, the ECM is just relearning the engine and go for a test drive. This will clear all the DTC history in the ECM like the day it cam off the assembly line. Good luck and keep me posted, be glad to answer ay more question.



Posted on Oct 30, 2009

  • 1428 Answers

SOURCE: my check engine light came on 2004 ford taurus had

P174 means Oxygen sensor was slow in switching Single, Right or Rear HO2S - Fuel control

P171 means Oxygen sensor not switching - system was at adaptive limits - Single, Right or Rear HO2S - Fuel control

Visit http://www.troublecodes.net/Ford/
for a comprehensive code listing for your car.

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Posted on Jan 08, 2010

SOURCE: What does check engine light code po 1405 mean?

P1405- DPF EGR Sensor Upstream Hose Off or Plugged

Posted on May 26, 2010

  • 184 Answers

SOURCE: check engine light code po

More p0108 detail @ http://www.obd-codes.com/p0108

Good luck!

Posted on Dec 10, 2010

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1 Answer

Po 454 code


Code P0454 is :

Evaporative Emission Control System Pressure Sensor
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my engine light also came on one day and I got the same, its common in older cars for this light to stay on all the time, you can truble shoot this by spending money on each of the engine sinsors, but i have had this light on for over 5 years and nothing is wrong with my car

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I have a 2001 Toyota Corolla with 255K I replaced all 4 injectors with remanufactured OEM Denso injectors (15K warranty that has ran out.) With the following codes about a year ago - PO 171 PO 300 &...


No i would go for the o2 sensors ,two are fitted one before the cat and one after ,use universal ones now the 4 wire ones are 40euros each but the 3 wire ones are 90 euros each, in the box is a wire conversion colour code chart but basicly the two wires the smae colour go together either way around and the other two look at the conversion chart

Jan 07, 2011 | 1998 Toyota Corolla

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Check engine light came on. Had diagnosed and these codes came up: PO 506 PO 2104 PO 2112 Where should i start??


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I have a 2001 nissan sentra xe and my check engine light is on i had a diagnostic test and the codes PO 455 and PO 0440 came back what does this mean?


PO 455- Evaporative emission control System leak detected (check exhaust system, egr valve, or entire intake and exhaust system)


PO440- Evaporative Emission System Malfunction (also check oxygen sensor)

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1 Answer

Check engine light on


P0700 - Transmission Control System Malfunction, this is a transmission or PCM issue and needs further diagnosis with other test gear.

The P1684 code simply means that the battery has been disconneted within the last 50 engine starts.

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