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204 mazda 6 3.0 check engine light flashing code u0121

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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

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ewashmidas
  • 362 Answers

SOURCE: 1998 mazda 626 check engine light flashing

Your vehicle’s computer system has self-testing capability. When the computer senses that there is a problem with one of the components or sensors it stores the correspondent trouble code(s) in its memory and lights up the "Check Engine" or "Service Engine Soon" light to tell you that there is a problem and you need to diagnosed and repaired it. The list of possible codes number in the hundreds. The code itself doesn't tell exactly what component is defective - it only indicates where to look, or what engine parameter is out of normal range. A technician will have to perform further testing to pinpoint cause and the proper repair. When the light starts flashing the computer is telling you to have the vehicle looked at now before other problems happen.

Posted on Mar 05, 2009

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ajarema
  • 404 Answers

SOURCE: 03 Mazda 6: Check engine light on, code po174

The oil pressure sensor does not have much to do with the P0174 code so the leak on the gasket is not the cause, usually it is the air mass sensor, or the intake sensor. if you have a leak of oil, this might as well mean that whoever changed the oil did not put the right specs of it and this caused the oil to get through. After some time you will experience that the rpms will reach only certain level and won't go higher. Change oil to the right specs and get the sensor cleaned if not to late or replaced (will be expensive). Gasket change wil be needed as well.

Posted on Jul 25, 2009

canbruce75
  • 1776 Answers

SOURCE: check engine light Mazda MX-6

Take the car to an autoparts store and have them scan the computer for stored fault codes. The light is to alert you that the computer has noted a fault in one of the car's systems. Most parts stores will do the scan for free and getting the codes will show what faults the computer identified, so you can take appropriate action. Hope this helped and best wishes.

Posted on Sep 08, 2009

  • 1341 Answers

SOURCE: check engine light flashing on 2001 Mazda Millenia

You need to have a computerised car diagnostic done to the car.This will tell you the error code and what is causing this problem.Remember to always reset the car if there has been any replacement parts.Hope this helps.

Posted on Nov 12, 2009

  • 55 Answers

SOURCE: 01 Mazda Millenia 2.5L check engine light

sounds like its a different sensor causing problem. could be TPS SENSOR OR MAP SENSOR .

Posted on Dec 06, 2009

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Mazda 6 2005 u0101,u0155,u0121,u0073,u0100 codes coming up


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  2. Ground the test connector (1 pin wire) with a jumper wire. NOTE: Test connector is located next to the check connector in the engine compartment near the left side strut tower.
  3. Turn the ignition switch to the ON position.
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