Lean fuel and other codes

[tnhl1989]

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?

[ard]

Originally Posted by tnhl1989

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

[tnhl1989]

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

[upallnight]

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.

[SlickGT1]

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

[Rewmer]

Sounds like an air leak to me.

[tnhl1989]

Does anyone see the photo that I have up?

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

[TerminatorX5]

Originally Posted by tnhl1989

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?

[tnhl1989]

It's a 03 e53 x5 3.0l

[TerminatorX5]

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?