Fuel trim malfunction

[tommyk999]

Hi Guys
Should i worry i just identified fault codes on my car.
First two are Fuel trim malfunction bank 1 and bank 2
Second is Ambient air temp sensor circuit.
Any advise? Thx

[tommyk999]

Anybody???

[Big Sig]

Could be an air leak. Were the codes p0170 and p0173?

[tommyk999]

yes 170 173
air leak and where?

[tommyk999]

[Ste]

I woukld check the MAF sensor and any leaks after it to the intake

[Big Sig]

Its probably sucking air in through a split pipe or gasket. Failing that get the o2 sensors checked - as a last resort.

[tommyk999]

Ok i check that
Thank you