Fuel bank fault code

[Ibiza125]

Well I seem to be getting a small fault with my car that comes and goes. Once I clear the fault it's fine, then goes into limp mode, then sometimes comes out of it during the same drive, then goes back in etc etc.

Always this code here:

17536 - Fuel Trim; Bank 1 (Mult): System too Lean

        P1128 - 35-10 - Please Register/Activate - Intermittent

Question is what to do to stop it? Been on ross wiki and it suggests MAF (already been changed), oxygen sensor faulty or fuel injectors.

Now I have noticed a bit of residue around one of the injector seals, but could this cause it to go into limp mode? I suppose it could if it doesn't get enough fuel in one cylinder.

What do you folks suggest new injector seals as first base?

 

[Reuvers]

I have the same problem. Been like that for a while now. However mine will go into limp mode after 15-20 minutes already!

Changed the spark plugs already, and cleaned the pre cat lambda however no luck. Car is up for sale and a new lambda is very costly.

anyone had this and actually solved it?

 

[tom w]

i also had this prob ,i replaced my maf and lambda sensor at just shy of £100 each and this fault has gone and that was over a year ago!

 

[Reuvers]

well I am waiting on a maf as we speak so i'll see what that does.

 

[Ibiza125]

I have a new MAF on mine so I don't think it could be that... Unless I need an oil catch tank to prevent any oil residue getting on the sensor?

I don't have my 2nd lambda sensor so could that be the cause?

 

[tom w]

prob wouldn't hurt to clean the maf sensor its only held in with two torx screws ,personally i wouldn't rule the maf out as these are delicate and sensitive to knocks and vibration

 

[Robbie C]

They're not torx screws, they're TS25 security bits, but they can be undone using mole grips or similar: http://www.seatcupra.net/forums/showthread.php?t=230308

 

[tom w]

i stand corrected! lol either way a piece of p*ss to remove, you get that size with most screwdriver bit sets now

 

[Ibiza125]

prob wouldn't hurt to clean the maf sensor its only held in with two torx screws ,personally i wouldn't rule the maf out as these are delicate and sensitive to knocks and vibration

It is a new MAF so shouldn't really be playing up. I'm going to fit a catch tank anyway and see how it goes. Been meaning to do it for a while anyway!

 

[wilz]

Get going with that catch tank,

Cant help you on the fault i'm afraid. Have you tried Baz he sems to have come across most things.

 

[andy_tratter]

sorry to drag up an old thread, ive got hte same problem (well the error code bit, not the limp mode bit - epc light just flashes on and then goes off after the codes been deleted, but comes on agian a few days later with hte same thing), did anyone actualy sort it in the end?

cheers chaps

 

[tom w]

Maf

 

[andy_tratter]

thanks very much

 

[Ibiza125]

Maf

The MAF had already been changed in my case bud... The fault doesn't appear anymore so god knows what it was..!

 

[daves ibiza]

havnt you got second lamda mate

 

[Ibiza125]

havnt you got second lamda mate

No I don't have a second lamdba.

 

[daves ibiza]

well can you do me a fauvour mate tell me what colour plug you got on your first one

 

[Ibiza125]

well can you do me a fauvour mate tell me what colour plug you got on your first one

That would involve getting my feet very cold as we have a few feet of snow... but maybe..!