For those who own one will have come across the this dreaded job.
Symptoms: P0171 Fuel System Too Lean / Juddering in low or high gears
Solution: Clean the Tract Valves
How : Lets begin
Things you need:
1. Inlet Manifold Gasket
2. EGR Valve Gasket
3. Spanners / Tools & you the tool who is doing the job 🙂
Time it will take :
If you are:
– A numpty like me then 4-5 Hours
– A shit hot mechanic then 2-3 Hours
Step One : Remove Scuttle Panel : This is held by 4 x Torx Screws.
Step Two : Unplug ECU : there are 2 x plugs, Pull and unplug
Step Three : Unscrew ECU. This is is held by 3 screws, 2 x TORX and 1 x some other type which also has earth cable on it.
Step Four : Unscrew the ECU plate on which ECU was screwed. Keep it safe.
Step Five : Unscrew Air intake, this is held by 4 x Torx screws again. This will make job easier when unscrewing manifold
Step Six : Unscrew 8 x bolts and 1 x bolt from underneath to loosen the manifold
Step Seven : Unplug water tube and millios of plugs. Take pictures if you think you can’t remeber where they go.
Step Eight : I didn’t remove the manifold but just moved it out of the way. The seal will come out in a filthty state
Step Nine : Unscrew 8 x TORX for EGR Tracts.
Step Ten : Remove the plate alongwith gasket. It will be BLOCKED.
Step Eleven : Clean it, scrub it, but clean it. Also unblocked 4 x tract holes. This took me half an hour as they were utterly filthy.
Step Tweleve : Apply new gaskets and put it back together.
Double triple check all the connections etc.
When I first fired the car up, it was a bit hesitant. Sounded like the battery was a bit low but then it fired up.
It sounded a bit rough to begin with but went very quite.
Gave it a run and no judder at all. The P0171 used to appear within half an hour after I used to reset, so far so good.
You have it done and you deserve some food: