Lean fuel and other codes
 

Hey guys so I got a pretty long list of codes that came up on my friend's car.

P0313 Misfire Detected With Low Fuel Level
P0300 Random/Multiple Cylinder Misfire Detected
P1349 Misfire Cylinder 4 With Fuel Cut-off
P1345 Misfire Cylinder 2 With Fuel Cut-off
P1347 Misfire Cylinder 3 With Fuel Cut-off
P1342 Misfire During Start Cylinder 1
P1083 Fuel Control Mixture Lean (Bank 1 Sensor 1)
P1085 Fuel Control Mixture Lean (Bank 2 Sensor 1)
P0171 System too Lean (Bank 1)
P0174 System too Lean (Bank 2)
P0128 Range/Performance Problem In Thermostat
P0735 Gear 5 Incorrect ratio

I had already changed the spark plugs, valve cover gasket, cleaned the maf, disa, and icv. Still can't find out what the problem is really.

Overall the car is having such a hard time starting, low rpms, and a lot of whistling noise.

Any suggestions guys?

INTAKE AIR LEAK. Whistling and lean codes. I think if you fix that all the others become manageable or non-existent

Also, did you clear codes and ALL these come back? Or are these just all the codes from the last 3 years??

A

Found the problem
 

Does anyone know where this hose connects to? Can someone check their cars for me? It is attached to the dip stick.

http://img6.imageshack.us/img6/7288/imagekpt.jpg

The misfire with fuel cut off could be bad coil packs or you have oil in the spark plug holes causing the spark plugs to miss fire. Pull the cylinders coil packs that shows a fuel cut-off and see if there is oil in the spark plug holes. If not, swap the coil packs to the cylinders that does not have the fuel cutoff, clear the code and see if the code follow the coil packs.

Sounds like DISA valve. But who can tell, we don't even know engine and model year.

Sounds like an air leak to me.

Does anyone see the photo that I have up?

Could someone trace the hose that is shown to be connected to something?

yeap, that photo looks like my E34... is it what you got? or you have E53? that photo does NOT look like either of my E53s...

I am confused - what car do you have?

It's a 03 e53 x5 3.0l

ok, this is better - 2003 E53 3.0 inline six. no wonder it looked so familiar - i thought it looked like the E34, actually it looked like my old E39...

I have V8s so i can't help you directly but if you have a "zoom-out" pics, it might be helpful - don't forget, this is a remote diagnosis, which is not that easy...

other helpful things for you to share with us - what happened first - the codes came up and then you did all the changes to the spark plugs, gaskets, etc...? or, you did the changes and then the codes came up? We need to understand what may have caused the issue in the first place - what is the current mileage, and under what conditions the car is driven? agressive? mild? highway? in town errands?

Transmission vent hose. Term, we have that same hose in our 4.8is as well.

хаха...

Денис, я его расскручивал, чтобы высрался от винта, а то в час по чайной ложке - зуб даю, сам всё расхуRрил, а теперь телегу катит, типа я не извозчик...

Go ahead google translate - translate this!!!!

Could you guys take a photo of where that hose is suppose to plug into?

This is the zoom out view.

http://img221.imageshack.us/img221/1451/img1012hw.jpg

So are you saying it's like this diagram?

RealOEM.com * BMW E53 X5 3.0i A5S360R/390R seals/speed sensor

http://realoem.com/bmw/diagrams/i/b/136.png

I changed the VCG, Sparkplugs, Lower Intake Boot, Vacuum Hose on the SAP.

Current mileage is about 105k. Usually just town errands or work which about a 10 minute drive.

Overall the car has been having a hard time accelerating. It would jerk and the idle is horrible. Surging while accelerating. Can't go up pass 30mph.

The vent hose does not plug into anything. Just curious, was the lower intake boot you changed before or after this problem?

Did you clear the old codes? With all that problem the ECU/DME should be throwing up codes out the tail pipe.

Yep cleared the codes. I had the codes before and after all the changes.

Lol. No google translate will ever translate this. Hahahaha.

Have you checked DISA valve as I stated initially?

The DISA Valve is brand new. I replaced it and it doesn't have any leaks. Thank you :)

You have an vacuum leak! My suggestion - get a vacuum or a smoke test on the engine, I forgot the exact term but any Indy worth his/her salt will know what you are asking for - but you need to find where the leak is.
This is one of the most common issues with the E53/M54 engine especially if you have already ruled out the usual suspects. The culprit is generally the CCV (Crankcase-Ventilation-oil separator). Its a PITA DIY job but not impossible with some time and beer.
I have to attempt it soon on my Wife's X - not looking forward to it.

Get the test!

RealOEM.com * BMW E53 X5 3.0i Crankcase-Ventilation/oil separator

Here is a video of me driving the car after I just put everything back together. I also ran codes which I will update in a bit.

http://www.youtube.com/watch?v=4JAC7tRonZM

Current codes on the car -

DME -> F1/79 - Misfire, cylinder 4, misfiring with cylinder cutout (Misfire CARB_A), low fuel level signal, active during fault entry
Shadow-memory:
5A/12 - Exhaust temperature before catalyst, bank 1, signal line, short circuit to negative
5B/12 - Exhaust temperature before catalyst, bank 2, signal line, short circuit to negative
5D/12 - Exhaust temperature after catalyst, bank 2, signal line, short circuit to negative
F1/79 - Misfire, cylinder 4, misfiring with cylinder cutout (Misfire CARB_A), low fuel level signal, active during fault entry

ABS -> 61/FD - Steering angle adjustment necessary
5A/FE - Temporary system deactivation

when you put the gaskets back, did you tighten things evenly? you've got vacuum leak or air is siphoning in somewhere... the hissing sound - can you pin point the location of hiss?

Funny - we keep telling him he has a vacuum leak and he keeps doing other things. Dude get the vacuum test/smoke test and determine were your leak is - knowing is half the battle!

Sent from my Galaxy SIII using Tapatalk 2

I will eventually get the vauum test/smoke test. That is up to my friend really if he wants to bring it to a indy/dealer. I'm trying to do the best I can with what I know of the top of my head. As far as tighten things evenly and correctly I already did that. Thanks again for all the help everyone.

If you don't have access to a smoke machine, you might have some luck with more primitive tools. You could try an automotive stethoscope (9.99 at Autozone), possibly in combination with a vacuum pump with a gauge,($35 from Sears): Mityvac Mityvac MYMV8000 Vacuum Pump with Gauge - Tools - Mechanics & Auto Tools - Auto Body Repair Kits & Supplies

You might be able to hear a leak, and/or confirm that if the vacuum system is leaky or not.

Also, if you search the net, there are instructions floating around on how to home-build a quite inexpensive, automotive smoke machine.

It's only expensive if you like Cuban Cigars!!!

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

Not what I was talking about...but pretty funny.