M35 Engine Warning Light 0171, System Too Lean

[Flavel]

Ok my engine warning light has come on again , the code is 0171 (system too lean) iv had this code come up before so I check it all out and turned one of my hoses come off the air intake, assuming that's what it was I fixed it cleared the code but now it's back, anyone with any help ideas to what it could be would be much appreciated, also I have rechecked all hoses and clamps all seem to be fine so now I'm lost

[scotty nm35]

Probably the fuel reg vac line, they pop off constantly. I would be trying to cable tie the hoses both ends so it doesn't happen again.

Can you hear a vac leak at idle?

[WAGON_BOY]

mine does it all the time but I have aftermarket ECU, I'll check vac lines anyways.

[Flavel]

Thanks for the reply, iv checked all the lines that I find and follow they all appear to be fine, it's due for its 100000km service soon so hopefully they will pick up on what it is, and won't charge to much

[Flavel]

Thanks for the reply, iv checked all the lines that I find and follow they all appear to be fine, it's due for its 100000km service soon so hopefully they will pick up on what it is, and won't charge to much

[Flavel]

Thanks for the reply, iv checked all the lines that I find and follow they all appear to be fine, it's due for its 100000km service soon so hopefully they will pick up on what it is, and won't charge to much

[Flavel]

Thanks for the reply, iv checked all the lines that I find and follow they all appear to be fine, it's due for its 100000km service soon so hopefully they will pick up on what it is, and won't charge to much

[Flavel]

And no every thing sounds fine, it's got me stuffed

[iamhe77]

Did they change the fuel filter?

(it is a section of the pump assembly in the fuel tank)

If it hasn't been done, it may still be on it's original production line filter and might be quite clogged.

Just a thought.

[zelda]

Hey guys, didn't want to start a new thread. Mine has the same code coming up. Vac lines replaced and cable tied. Car seems to run fine but don't want to go and blow it...

However I want to change the fuel pump anyway, is there a write up on this?? Can't seem to find one for the life of me. Would be happy to take pics and do a write up if that is the case.

So does anyone have a part number for the external filter? What's the best drop in pump to use and so on... Your wisdom is greatly appreciated as always.

Zach

Edited May 5, 2015 by zelda

[Daleo]

This is the best one, and closely resembles our car.

Care of Scotty;

Fuel tank O-ring: 17342-01A00

Fuel filter strainer: 16400-4M405

Contact Scotty for a fuel pump.

http://g35driver.com/forums/engine-drivetrain-forced-induction/190372-walbro-255-installation-diy.html

[zelda]

Thanks Dale.

Typical, straight after posting that i found the thread I overlooked.

[Daleo]

Ah well, it only took a minute, and I'm getting paid to do something else at the moment anyway.

[zelda]

That wouldn't be making my suction pipe would it?? ?

[Daleo]

If only...

No foreign orders at work now; crazy new site manager.