Question about 2002 Mazda Millenia

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2002 mazda millenia 2.3L p0170, p0173 codes

What is this problem? Vaccuum leak, MAP, or what?

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Go have a smoke test done

Posted on Oct 27, 2012

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Posted on Jan 02, 2017

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SOURCE: Location under hood for fuel pump relay on 2002 Mazda Millenia S

JUST RELEASE THE PRESSURE AT THE FUEL PRESSURE TEST PORT ON THE FUEL SUPPLY RAIL THAT SUPPLIES THE INJECTORS, IT IS A METAL VALVE LIKE A TIRE VALVE, THAT IS THE FACTORY RECOMMENDED METHOD..

Posted on Mar 11, 2009

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SOURCE: my hold light is flashing in my 2001 mazda millenia

hold light flashing means you have a transmission fault of some kind, check vehicle speed sensor

Posted on Jul 03, 2009

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SOURCE: An automatic 2002 Mazda Millenia V6 2.5L is stuck in park

When you experience this problem, check to see if your brake lights are coming on. It could be as simple as a brake light switch malfunction. If the brake lights are functioning as the problem is occurring then you could for example have a problem with the shift interlock solenoid.

Posted on Jul 28, 2009

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SOURCE: 2002 mazda millenia diagnostic code problems

i think you have a vacumm leak po 170 is a lean code look for leaks also check and clean mass air flow sensor and you may have to take to dealer for that throttle screw that does not adjust the idle speed take carb cleaner and carfully spray around engine when running listen for change becareful around coils and exaust.

Posted on Sep 16, 2009

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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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P0173 Code


BMW Unmetered Air Leaks P0170 P0173 Mixture Too Lean ...

? 6:41
www.youtube.com/watch?v=Eso0dgmymhYJan 2, 2013 - Uploaded by AskTheCarExperts BMW Unmetered Air Leaks P0170 P0173 Mixture Too Lean Smoke ... a lot thank you , damn boot was giving me so much problems and codes.

P0173 Fuel Trim Malfunction (Bank 2) - OBD Codes

www.obd-codes.com/p0173
Detailed information on troubleshooting and repairing a P0173 DTC code which refers to a fuel trim malfunction on Bank 2. Also includes links to relevant forum ...

Oct 16, 2015 | Cars & Trucks

1 Answer

How to fix code p0170 in a 2000 subaru outback


P0170 Fuel Trim Malfunction (Bank 1) OBD-II Trouble Code Technical Description Article by Dale Toalston ASE Certified Technician Fuel Trim Malfunction (Bank 1) What does that mean? This code is one that surfaces with certain makes of automobiles more than others. 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. It also indicates that the fuel trims reached their limit of adding fuel while trying to compensate for a actual or perceived rich condition. 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 Symptoms of a P0170 DTC may include: MIL (Malfunction Indicator Lamp) Illumination Start and stall Poor fuel economy Black smoke at tailpipe Hesitation/misfire at idle or under load Causes Potential causes include a vacuum leak, unmetered air leaks Fuel saturated engine oil Leak in turbo air charge hoses (if equipped) Possibly bad O2 sensor (If Mercedes, may require adaptation with M-Benz compatible scan tool.) Oil contamination in MAF connector or O2 sensor connectors. Also check ignition coils, cam and crank sensors, and oil sensor for leakage contributing to oil intrusion in wiring harness. Defective MAF (Mass Air Flow) sensor (especially on Mercedez-Benz and other European autos. There are a lot of problems with aftermarket MAF sensors.) Defective fuel pressure regulator Leaking camshaft adjuster solenoids (Mercedes-Benz). NOTE: for some Mercedes-Benz models there is a service recall for a crankcase vent hose located under the intake manifold. It should be checked for leaks/cracking and also operation of check valve in the hose. The check valve should flow only one way. Possible Solutions It should be stated right off the bat that the most common problem associated with this code is the MAF sensor or air mass meter. This is especially the case with Mercedes-Benz and Volkswagen and other European cars. At time of writing, you don't normally see this code with American-made cars, and minimally with Asian, and, to be honest, I have no idea why. It appears to me that the PCM (powertrain control module) logic used by some European car manufacturers to set a P0170 (or P0173) fault code simply isn't used by American vehicle manufacturers. It is more common to see P0171, 0174, 0172, 0175 codes set with regard to fuel trim malfunctions on American cars. There is very little information on the setting conditions for a P0170, or P0173, but what information that is available almost seems to be a redundancy of the P0171,4,2 & 5 setting conditions. I'm sure there's a reason for it, but I can't get anyone to tell me what that is. The similarities between them may be why we don't see this code surface on domestic vehicles very often. It's simply unnecessary. So, simply put, if you have a P0170, your PCM noticed that the fuel trims reached their rich correction limit. Basically it's adding fuel to try to compensate for a lean condition, real or perceived. If you have this code and access to a scan tool, observe the MAF sensor reading in grams/sec. The reading will be different for different automobiles, so get a good spec. I'm going to stick with what would be normal for a Mercedes (1.8L), since they have the bulk of the trouble. Expect to see at idle 3.5-5 g/s (ideally). At 2500 RPMs with no load it should be between 9 and 12 g/s. On road test, at WOT (wide open throttle) it should be 90 g/s or well above. If it's not in specs, replace it. Be careful of Ebay MAFs. Often they don't work according to OE specifications. If the MAF checks out and there is no oil intrusion at the connector, check fuel pressure and ensure that there are no leaks at the regulator internally or externally. Check all vacuum hoses and confirm none are cracked, disconnected or missing. Make sure there are no vacuum leaks at the intake manifold gaskets or tears in the air supply hose. If the engine is turbo charged, be sure the hoses are in good condition and have no leaks. Leaking turbo pressure hoses could cause a rich condition. Inspect the condition of crankcase vent hose under intake manifold and operation of check valve in the hose. (In the "What are the causes?" section) If there doesn't appear to be any problems with the fuel pressure, MAF or vacuum hoses, then inspect the O2 sensor connectors for oil intrusion. A bad O2 sensor could cause a P0170, or P0173. Repair cause of oil leak and replace oil-fouled O2 sensor.

Read more at: http://www.obd-codes.com/p0170
Copyright © OBD-Codes.com

May 13, 2015 | 2000 Subaru Outback

1 Answer

How to resolve Code P0170 on 2002 Millenia


sell the car.. Most millenias are over and tightly monitored and are to sensative.. lawsuits have been an issue. Now fixing this issue will cost more thn the vehicle is worth..

Jun 25, 2014 | 2002 Mazda Millenia

1 Answer

2002 suburban


Are you sure it is a trans code. Everything that I have found states that P0170 is a fuel trim problem?P0170 Fuel Trim Malfunction (Bank 1)

The code P0170 means that the air-fuel mixture coming in to the engine is too lean, or too rich. Usually it's the lean condition that causes this code. The code P0173 means the same, only for the Bank 2. Some car manufacturers list the description for the code P0170 as self adaptation out of limits.
The code P0170 could be caused by a number of reasons, such as vacuum leaks, bad PCV valve, or other parts of crankcase ventilation system, low fuel pressure, bad oxygen sensor, bad MAF sensor or even a bad EGR vlave.

Apr 05, 2012 | Chevrolet Suburban 1500 Cars & Trucks

1 Answer

Codes: P0304 - Cyl 4 misfire P0170 - fuel trim malf B/1 P0173 - fuel trim malf B/2 P0300 - random - multiple cyl misfire P0105 - manifold absolute pressure/barometric pressure circuit malf P1524 -...


This realy sounds like a fuel problem filter or the pump you are getting to many codes at once and all of these sensor can,t be going bad at the same time Looking at the random misfire and the fuel trim issues map and air charge all at the same time is unlikely The olny other thing you may wan,t to check is the crankshaft pisition sensor but aren,t getting that code so im thinking fuel delevery good luck

Dec 02, 2010 | 2001 Mazda Millenia

1 Answer

Check engine code p0170


P0170- Fuel trim malfunction. This may be triggered by intake hose leaks, vacuum hose leaks or exhaust leaks. Also faulty O2 sensor or corroded O2 sensor connectors. inspect all above!!hopefully this helpd

Oct 10, 2010 | 2001 Mazda Millenia

1 Answer

01 Mazda Millenia 2.5L check engine light


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

Dec 06, 2009 | 2001 Mazda Millenia

1 Answer

2002 mazda millenia diagnostic code problems


i think you have a vacumm leak po 170 is a lean code look for leaks also check and clean mass air flow sensor and you may have to take to dealer for that throttle screw that does not adjust the idle speed take carb cleaner and carfully spray around engine when running listen for change becareful around coils and exaust.

Sep 16, 2009 | 2002 Mazda Millenia

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