Having problems cars down on power

[relisys77]

its a 52 plate 1.0i the car feels hesatant when you put the foot down and has no power on hills feels like its strugling for air or fuel. it has had a new maf and lambda sensor and just been serviced. it seemed to run a bit better when it had a k&n panel filter on it but ive swaped that into my other car. anyone got any ideas?

 

[Paul Smith]

When you say it's had new maf and lambda was that for any reason ? How long ago were these replaced.

 

[relisys77]

car was showing p0171 lean in bank one so i changed the lambda and had a faulty maf so changed it were done a couple of weeks ago

 

[frank]

bank 1 sensor 2 is the 2nd lambda eh, and have you tried it with the maf disconnected ?

 

[relisys77]

ive not tryed it yet will give it a go tomorrow. so i need to change the other lambda sensor then. there is a huge power difference between the 2 micras and there both the same engine