SES light on...

musali · #1 05-09-2007, 03:56 PM

My SES light came on my 2001 X5 3.0i. The first time I checked the code, it showed P0365. It was the camshaft position sensor, exhaust side. Replaced that and the SES light came on again within 2 days.

This time it P0505, idle control valve malfunction. Replaced that and the SES light came on again within one day.

Now this time the code is both p0141 (bank 1 sensor 2; heater circuit malfunction) and p0340. (CPS intake)

I read on this forum that P0141 is a false code, and im doubting if P0340 is the real code because the initial code was p0365.

My question is, do both the CPS go out around the same time? I really dont want to keep throwing money on new sensors when they arent bad and the codes are false. What should I do at this point? plus I dont know if I should even deal with P0141 yet.

Thank you,
Mustafa Ali

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Zulu95 · #2 05-09-2007, 07:10 PM

CPS have been know to fail at or around the same time. Not every time but it can happen.

musali · #3 05-10-2007, 02:24 AM

oh forgot to mention, I have roughly 55K miles on the car.

spider33 · #4 05-17-2007, 01:10 PM

Hi,
I got P0345 code and I'm planning to change camshaft position sensor Bank2 by myself.Can anyone point me to right locations for this sensor? BF I got X5 4.4
Thanks!

Zulu95 · #5 05-17-2007, 01:16 PM

Try this first:

http://www.xoutpost.com/articles/x5/e...placement.html

The Cleaner · #6 05-17-2007, 02:33 PM

If you can get a BMW code reader like a peake it will help a lot. The general codes are hard to isolate when they hit in sequence like that. My guess is you have a MAF starting to go, it will impact almost any system and sometimes not give a MAF specific code right away.

The BMW tool will be well worth the investment and help diagnose better.

Good Luck !

musali · #7 05-18-2007, 12:40 PM

the cleaner - where can i get a BMW code reader? at the dealership? they charge an hours worth of labor to read the code. should i just go buy a reader? how much do MAF's go for?

thanks,
mustafa

Zulu95 · #8 05-18-2007, 12:44 PM

Peake Code/Reset Tool. Around $149 or so.

musali · #9 05-18-2007, 02:51 PM

UPDATE:

replaced teh CPS intake side. car felt smoother. MPG went up a bit. Havent had time to get it cleared but hoping this is the end of it. ill post another update to see if teh SES light comes back on.

musali · #10 05-22-2007, 07:21 PM

UPDATE #2

After replacing both CPS, i got the SES light popping up again. its getting annoying, this time the code said P0141 (bank 1 sensor 2; heater circuit malfunction).

does anyone really know if O2 sensors go bad this early at 55K on the odometer? how much do O2 sensors go for?

im afraid im chasing a ghost with these codes.

ill keep you guys updated with what i do.

takecare,
mustafa

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