help problem with mk3 ibiza cupra anyone seen this fault code

[danielko3s]

hi guys wondering if some one could shed some light on this problem please

ecu light keeps coming on and throwing up this fault code after ive booted it

bank 1 fuel trim engine running lean

its only doing this some times after youve booted it hard then drive it normal after

just had a brand new o2 sensor fitted aswell and new maf meter

 

[danielko3s]

bump

 

[Viking]

You'll really need to post the actual fault code rather than just the description. But I'll take a guess at a leak in the intake or possible the exhaust somewhere.

 

[danielko3s]

leak

do you really think that could be the problem because ive just had my manifold to turbo gasket replaced and its still blowing abit

 

[Viking]

Yep, if you have a leak it upsets the lambda probes readings and throws an error.

 

[fossie]

As above matey was going to suggest something to do with the lambda making it running lean!!

 

[leon_r]

have a look at the vacuum pipes they are always falling apart causing a leak

 

[PhilW]

Or a stuffed MAF, maybe worth doin some logs to see whats up.