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-   -   N62 - Misfire at Idle P0300, P0301 ect. (https://xoutpost.com/bmw-sav-forums/x5-e53-forum/101979-n62-misfire-idle-p0300-p0301-ect.html)

upallnight 10-12-2015 06:56 PM

Quote:

Originally Posted by jfoj (Post 1054553)
Quicker and cheaper - https://www.youtube.com/watch?v=AsgB9eBl58I

Pump is a cheap fluid transfer pump that most auto parts store have, a rubber glove and a cheap cigar!

Why bother with a transfer pump!!!

https://www.youtube.com/watch?v=zMok2y05jNE

jfoj 10-12-2015 07:01 PM

Quote:

Originally Posted by upallnight (Post 1054564)
Why bother with a transfer pump!!!

https://www.youtube.com/watch?v=zMok2y05jNE

I know all about Professor Scotty.

The benefit of the transfer pump is you can provide a continues stream of smoke under pressure much easier than the Professor Scotty method.

Often there are crankcase air leaks and cracked or leaking valve covers and you need to remove the oil fill cap until smoke is coming out of the oil fill hole, then recap the crankcase. Then watch carefully for smoke to escape. You might get pretty winded trying to fill the crankcase and keep everything under pressure. Kind of like blowing up an air raft or mattress, you will not last long.

Professor Scotty's method is good for large leaks, but the smaller leaks are better found with a fixed/continuous pressure.

Lexicon740iL 10-13-2015 01:03 PM

Thanks again for all the replies guys.

I drove the x yesterday and it seemed to exhibit the issue much less then sunday afternoon when it showed itself.

I still got the flashing SES light when I pulled up to a stop. But once the light came on and stayed illuminated and I didn't clear the codes or reset the light it seemed to function the rest of the day with little to no misfiring or Flashing SES light.

I did rescan codes and came up with 1 new code we have not seen before. I got so excited hoping it would tell me the failed part like no data from an o2 sensor or CPS failed ect. but alas its was a generic P2187, System too lean at idle bank 1

I also pulled a screen up for Drive status since DTC clear and all the available systems show complete behind them in green text except Evaporitive Sys: it reads Incomplete in yellow text.

Observation : My torque free app will only show o2 sensor data from Bank 2 sensors 1 and 2

When I scroll through the menu I see the other banks way down on the list but no astrict by them meaning no data being sent.

Is this a restriction of the free version? I shouldn't worry about not being able populate a gauge with live data from that bank like something is disconnected or failed for proper metering of that bank correct?

I will get the stuff together for a smoke test I guess. Also I emailed my log data from torque free in CVS for to myself but when I opened it it only seemed to have GPS data from my trip. So must not be able to get the live snap shot data with the free version I'm guessing.

So based on the new info of the system lean bank 1 and the incomplete status of the evap system does that point to any new culprits guys?

Thanks!!!

Lexicon740iL 10-13-2015 01:10 PM

Torque free does seem to be lacking when looking for live data for sure. It shows I can get data for Throttle but it never shows a value other than 13.3 and it shows it should have data for fuel trim but when I pull those up I get a static reading as well that never changes.

jfoj 10-13-2015 02:00 PM

You want OBDFusion, it is a whopping $3.99.

If is far more intuitive to use than Torque and IMHO does a much better overall job and PROPERLY supports Wideband O2/Lambda sensors.

OBDFusion is what you want.

jfoj 10-16-2015 09:20 AM

I monitored my 4.8l MAF reading.

About 9 g/s at warm idle in drive, about 6 g/s at warm idle in park.

3.5 g/s for a V8 is far too low.

Either sizable intake air leak after the MAF or a MAF that is way under reporting.

upallnight 10-16-2015 03:14 PM

Quote:

Originally Posted by Lexicon740iL (Post 1054656)
Thanks again for all the replies guys.

I drove the x yesterday and it seemed to exhibit the issue much less then sunday afternoon when it showed itself.

I still got the flashing SES light when I pulled up to a stop. But once the light came on and stayed illuminated and I didn't clear the codes or reset the light it seemed to function the rest of the day with little to no misfiring or Flashing SES light.

I did rescan codes and came up with 1 new code we have not seen before. I got so excited hoping it would tell me the failed part like no data from an o2 sensor or CPS failed ect. but alas its was a generic P2187, System too lean at idle bank 1

I also pulled a screen up for Drive status since DTC clear and all the available systems show complete behind them in green text except Evaporitive Sys: it reads Incomplete in yellow text.

Observation : My torque free app will only show o2 sensor data from Bank 2 sensors 1 and 2

When I scroll through the menu I see the other banks way down on the list but no astrict by them meaning no data being sent.

Is this a restriction of the free version? I shouldn't worry about not being able populate a gauge with live data from that bank like something is disconnected or failed for proper metering of that bank correct?

I will get the stuff together for a smoke test I guess. Also I emailed my log data from torque free in CVS for to myself but when I opened it it only seemed to have GPS data from my trip. So must not be able to get the live snap shot data with the free version I'm guessing.

So based on the new info of the system lean bank 1 and the incomplete status of the evap system does that point to any new culprits guys?

Thanks!!!

If you cleared all the code prior to rescan and you have that evap incomplete, it just means that you haven't driven the X far enough since you cleared the code. Our EPA test will fail any car with an incomplete since they know that any code must have been cleared prior to bringing it in for testing. Drive the X for a while (usually 50 miles along with a couple of restarts) and the evap incomplete will change to evap complete.

As far as the limitation of the free Torque, I am able to see data on both banks on my phone which have a free copy of Torque. I would suggest that if you have another car, scan that car with your Torque and see if you see all the data for both banks. Could be you have a bad copy of Torque or perhaps that is why your X has a problem. Could be the 02 sensors is not providing a signal to the DME and that is why it is not shown on Torque and why your car is not in a close loop.

jfoj 10-16-2015 03:26 PM

Quit screwing around. OBDFusion for $3.99, slightly more than a gallon of gasoline.. Then Log the OBDII data stream. A Log will save about 10-20 replies in a thread.

Lexicon740iL 10-18-2015 03:22 PM

So I finally had some time to work on the x again today and I found it.

The Oil sipstick downtube separated at the joint halfway down. I could see caked oil residue in the joint. I cleaned everything up snapped it back. cleared my codes and started it up and went for a drive.

The e53 runs and Idles perfectly now. The vacuum leak was in the dipstick downtube.

I've also replaced the airfilter after you guys mentioned the MAF readings were low and those readings are higher now as well.

Thanks again for all the help.

I'm off to dump the oil and do a rear brake job now. I love this fall weather for working on the cars

jfoj 10-18-2015 03:30 PM

Glad you were able to get things sorted, but you still should purchase OBDFusion. Just because there are no lights on, does not mean everything is operating correctly. Additionally you could easily learn how to properly use the App and benchmark the values on the engine now so you know what "normal" values are for future reference.


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