Question about 2003 BMW 325

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Bmw 325i code 17i and 174 with a check engine light

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These are lean codes most likely you have a air leak

Posted on Aug 21, 2014

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Posted on Jan 02, 2017

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LT1Rob
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SOURCE: check engine light comes on but car runs great 2002 bmw 325i and

The check engine light could be any number of things and the only way to find out is have the codes scanned. The brake light issue is common on E46 3 series. It is an issue were the brown ground wire that goes into the lamp housing melts at the connector causing a loose ground connection. The connector needs to be replaced and also add additional grounding wires to prevent further issues. And for fuel additives either use the cheveron techron, or the bmw fuel additive(the bmw stuff is the exact same thing, so just use which ever is cheaper).

Posted on Mar 12, 2009

  • 736 Answers

SOURCE: check engine light 2003 BMW 325i

both codes are for lean mixture ... bank one and bank two .....that usually means a vacuum leak in the air intake system ... there is a Y shapped boot off the throttle body that fails frequently .. look for a hole or tear or general deterioration ... there is a second boot after the MAF (mass air flow) sensor, that is another possibility ... any off the vacuum hoses you can see under the fancy cover plate could be leaking .. there is a "crank case breather diaphram" that can do the same ... you can test that by removing the oil filler cap slowly (running) ..there should be a sllight vacuum release ... if its a big vacuum whoosh and maybe engine stumbling then suspect the crank case breather diaphram ... finally you could have a bad MAF sensor but more likely the vacuum leak ... running with a lean mixture can eventually damage valves and valve seats ... i use a small rubber hose to my ear to find vacuum leaks (stethoscope) ...

Posted on Apr 11, 2010

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SOURCE: check engine light bmw 325i code 340

Code PO340 "Camshaft Position Sensor Circuit Malfunction". Now that does not mean that if you simply replace the sensor your problem will be solved. It can be simply loose, cut, or corroded wiring. It can also be something entirely different. This is where diagnostic skills come in.

Posted on May 01, 2010

taran_2005
  • 10515 Answers

SOURCE: check engine light is on service codes p2231

Hi,

The code you reported does not seem to have relevance for BMW. Often generic OBDII codes do not have meaning and in this case the fault code does not correlate with any reference tables that I am using at this time. If you can have the car scanned with the BMW proprietary software and revert with those codes, it might shed light on this issue.

Let me know.so that we could proceed.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Posted on Dec 21, 2010

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1 Answer

How do you reset check engine light on 2002 BMW 325I


Hello, I was driving my 2002 BMW 325i and at a stop light the back tail light come I check It and look like it had a short in the housing it just start to act weird, the lights on the dash came on emi, check engine, brake, the one in middle that's looks like a A with a circle round it.i disconnected the battery for about 10mins and they still come on, can anyone of you help. What to do

Apr 18, 2012 | Cars & Trucks

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2002 bmw 325i engine light is on


All I know is that it is a 9 year old BMW. Probably has a little over 100k miles on it, right?
I would give better than 50/50 odds that a check engine light is telling you that your oxygen sensors are approaching the end of their service and are getting slow to respond. If you read the codes (which many auto parts stores will do for free) and the code says 'Catalyst efficiency low', the problem is old oxygen sensors.
You can replace oxygen sensors yourself if you have ramps to raise the car up.

Feb 03, 2011 | BMW 325 Cars & Trucks

1 Answer

Check engine light is on service codes p2231 p1418 are active . 2004 bmw 325i m56 engine


Hi,

The code you reported does not seem to have relevance for BMW. Often generic OBDII codes do not have meaning and in this case the fault code does not correlate with any reference tables that I am using at this time. If you can have the car scanned with the BMW proprietary software and revert with those codes, it might shed light on this issue.

Let me know.so that we could proceed.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Dec 21, 2010 | 2004 BMW 3 Series

1 Answer

Check engine light bmw 325i code 340


Code PO340 "Camshaft Position Sensor Circuit Malfunction". Now that does not mean that if you simply replace the sensor your problem will be solved. It can be simply loose, cut, or corroded wiring. It can also be something entirely different. This is where diagnostic skills come in.

May 01, 2010 | 2004 BMW 3 Series

1 Answer

Checkenginelight came on tonite on my 2003 bmw 325i I also tighten my gas cap to be sure it wasn't that was causing the light to come on.


What you need to do is have a shop pull the CHECK ENGINE LIGHT CODES from tne cars computor. Once codes are known the diagnostics proceures must be perform to determine what of the engine circuits caused the light to come on. Once repairs are done then the CHECK ENGINE LIGHT can be reset.

Apr 05, 2010 | 2003 BMW 325

2 Answers

2001 325i engine vibration around 1700 to 2000 rpms


could be new engine mounts or miss fire ...

Jan 04, 2010 | 2001 BMW 325

1 Answer

Check engine soon light came on the code said it was a P0700 and it came back saying it was Transmission Control System. The car is a 2003 325i BMW


PO700 Transmission control system malfunction

Check your tranny fluid, and or change it.

Good luck and rate this...

Dec 25, 2009 | BMW 325 Cars & Trucks

1 Answer

HOW COULD I READ CHECK ENGINE CODE ON A 1986 BMW 325E???


You can't use a tool to pull codes from an '87 BMW 325(e). You have the 2.7 liter and your DME, or computer is a Motronic. If you had a 325i, then a tool could read the codes because the computer was upgraded that year to a Motronic 1.1 system with a round plug in under the screw cap on the driver's side under the hood. The only tool you can buy is the one for resetting the service interval light and resetting the oil change light. To answer your question about going about finding your driveability problem would be to get a BMW Bentley Manual. This manual shows you how to use a standard voltmeter to check everything from your computer plug in. Your computer is located above the glovebox.

Good Luck,

~Stillin~

Jun 05, 2009 | 1986 BMW 3 Series

4 Answers

Check engine light comes on but car runs great 2002 bmw 325i and


The check engine light could be any number of things and the only way to find out is have the codes scanned. The brake light issue is common on E46 3 series. It is an issue were the brown ground wire that goes into the lamp housing melts at the connector causing a loose ground connection. The connector needs to be replaced and also add additional grounding wires to prevent further issues. And for fuel additives either use the cheveron techron, or the bmw fuel additive(the bmw stuff is the exact same thing, so just use which ever is cheaper).

Mar 10, 2009 | 2001 BMW 325

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