Question about 2004 Volvo XC90

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Po codes my car doesnt want to accelerate

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Almost all codes, generic anyway, can be found using Google
OBD PO !!!
Code won't tell you what is wrong ,or to replace anything
Just a sensor out of range, that has to be tested or wiring
issue,depends on the code

Posted on Jul 27, 2013

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Posted on Jan 02, 2017

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Po 756


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Jul 26, 2013 | 2004 Volvo XC90

1 Answer

MY CAR WAS PUT ON A MACHINE AND IT CAME BAC THE FOLLOWING CODES: PO 301, PO304, PO335, AND PO 750. I DONT KNOW WHAT TO DO MY MECHANIC SAYS THAT THE SHIFT SOLENOID IS LOCATED IN MY TRANSMISSION AND HE...


hi p -codes are as follows po 301 cylinder 1 missfire detected
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Code Po171, P0174 P0403 . Upon acceleration....truck is jumping. One code metioned Cyl 3 misfire


PO 171 & 174-are O2 Sensors Codes,forget them,just be sure their screwed in tight. Yes ,they will come loose.
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Had all thoses and more, on my Lincoln Ls

A misfire will set many codes,that while not unrelated,are not your issuse. You need to understand the symptom,is not always what caused the codes,or not the cause of the problem.

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1 Answer

Check engine light is flashing and car is shaking especially when i accelerate


You are experiencing a secondary ignition miss fire.The most likely cause would be one or more spark plug wires breaking down .If you can go to a Autozone parts store they can check the codes for free .PO 301 to PO 306 codes would be miss fire codes.:)

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Need Help VolksWagon 2000 Jetta 2.0 DTC codes PO-300 PO-302 PO-30


recall for windows is for the "clips"that attach the window to regulator ...run it buy your local dealership they will rebuild both doors for free if they haven't been done yet. as for the missfire codes, if you have a miss clear the codes , run the motor a couple key cycles till mil light returns and then reread codes.if only one cylinder sets code try swapping just the plug with another cyl;s plug , clear codes, rerun till light returns, read codes again if on same cyl it's the coil for that cyl if it moves to the cyl original plug was put into replace plug.....however 90% of the time when you get P0300 and more than one of the other 4 missfire codes it is from a vaccume leak. not all leaks will show with the old fashion gumout test.

Mar 23, 2009 | 2000 Volkswagen Jetta TDI

1 Answer

2005 Taurus Program Codes PO 300 and PO 316


May need to clean the egr valves because if one is stuck then the other bank would be enriched to make up the difference .In order to reset the computer when your done is unhook battery and then reconnect. But realize some radios are subject to needing a code to make them work again because of a theft sensor. Here are some a few sensors and what happens when the don't work right.

ECT sensor
symptoms
Potential Symptoms

Symptoms of a P0118 could include:

* Very poor fuel economy
* A no start condition
* Vehicle may start, but run very poorly, blowing black smoke, running very rough and misfiring
* Illumination of MIL

TPS sensor

Symptoms of a P0121 trouble code could include:

* Malfunction Indicator Lamp
(MIL) illumination (Check Engine Light or Service Engine Soon light)
* Intermittent stumble on acceleration or deceleration
* Blows black smoke on acceleration
* No start

EGR valve

Usually a fault in the control circuit, will leave no noticeable symptoms other than the Malfunction Indicator Lamp (MIL) illumination. However, if the EGR control solenoid
is stuck open due to debris, etc. the code may be accompanied by misfire under acceleration, rough idle, or engine dying altogether.

po171

You will more than likely not notice any drivability problems, although there may be symptoms such as a lack of power, detonation (spark knock), and/or a hesitation/surge on acceleration.
Causes

A code P0171 may mean that one or more of the following has happened:

* The MAF (Mass Air Flow) Sensor is dirty or faulty. Note: The use of "oiled" air filters may cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the circuitry.
* There could be a vacuum leak downstream of the MAF sensor.


These are the main ones
God Bless Greg

Dec 20, 2008 | 2003 Ford Expedition

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