17538 P1130 Long Term Fuel Trim mult.,Bank2 System too Lean

[seatcupra2001]

Hi im new to the site i just brought a seat leon cupra yesterday drove it home it was fine drove it a bout most of the day then at night time ecu light pops on so i phoned the rac an the said it was a code 17538 bank/mixture but when he reset the ecu it has'nt come back on

but does any one no why this came on? was it a sereous fault? cause i dont wanna break down with the mrs an me son thanks if any one can help

 

[m0rk]

17538 P1130 Long Term Fuel Trim mult.,Bank2 System too Lean

Probably a dieing MAF sensor.

 

[traumapat]

welcome to the forums

is the car under warranty? The MAF is around £80 and very easy to do yourself if it comes to it.

realise youve only just got the car and not used to it but is it running smoothly?

 

[the_fbi]

What lambda/exhaust setup does this car have?

Does it have a pair of pre-cat lambda's on a 4-2-1 manifold and a post-cat? Or just a pre-cat and a post-cat lambda?

Dieing MAF would either affect bank 1 on a dual lambda car, or bank 1 and 2 on a tripple lambda car (were banks 1 and 2 are the paired up exhausts in the 4-2-1 manifold). For bank 2 to be failing, I'd assume the car's only got 2 lambdas, one pre and one post-cat.

Not sure how only bank 2 could be affected by MAF. Bank 2 is either post-cat, which is simply reading the delta beween before and after CAT, so MAF isn't relevant, or its on a branch of the 4-2-1, so bank 1 would be off too if it was MAF.

If its only got 2 lambdas, one pre-cat and one post-cat, then "bank 2" is generally post-cat.

Access permitted, simple to change too and cheaper than a MAF.

If its got a tripple lambda, with a pair on the 4-2-1, then you need to identify which cylinders are "bank 2" of this branch, then it could be injectors on one of these.

I'd go for the post-cat lamda though personally. If the car has been sitting a while (a few months) maybe it just needed a good warmup to dry out this lambda.

 

[seatcupra2001]

HI traumapat yeah its running fine boosts about 2000rpm ish dont shudder or anything i let it warm up for about 3mins an cool down for 3mins lol but i dont rag it but ive taken up to about 4500rpm tops i drove it 2day after the RAC reset the ecu last night drove about 15 - 20 miles touch wood it has'nt come on lol THE FBI i think it has been sat for about 2months occasionally driven proberly a few miles i hope the lambda just needed drying out lol also this is my first SEAT and first turbo car is there any advice to look after it lol thanks

 

[traumapat]

personally id take longer to warm up/cool down. oil temp can take 10-15mins to warm up fully.. even though the coolant shows 90 much quicker. nothing to worry about just dont go mad for the first 10mins or so. gentle drive for the last mile covers cool down as the coolant pump runs around the turbo for a while after switching off. ( do cool down though as the stationary oil left in the turbo can cook otherwise.)

if the problem comes back... JKM motor services are in pompey, not used them myself but have a solid reputation and they are also on this forum.

pretty solid cars by all accounts, other than the odd sensor playing up.

good luck with her

 

[seatcupra2001]

cheers bud yea i keep it under 2k for about 2miles anyway just so it warms up properly lol