LAMBDA SENSOR

[crackers187]

hi..i bought a remapped s3 a few months back & recently the lambda sensor needed replacing..since then i feel as though its lost a bit power in the first few gears

i just wanted to know whether replacing the lambda sensor could have any effect on the remapping of the car

any positive respoonsies would be appreciated


cheers

 

[abdus]

How do you know the lambda needs repalcing? Have you tried to scan for any fault codes?

 

[hooley]

Was the Lambda replaced or still needing to be replaced?

It will alter feuling as it measures the combustion gasses and alters the feuling map to suit.
I recently replaced mine and the torque now kicks in nicely from 2.4k whereas before with the knackered lambda it was 2.9k and running quite a bit lean.

I left mine too long and think i've burnt a valve. Bummer.

J

 

[barters3]

i have had a lambada fault come up on vagcom, the car seems to run fine, is it still advisable to replace it?

 

[crackers187]

i took it to an local audi specialist becuase the engine managemnt light came on..and after a diagnostic check it came up with a fault with the lambda sensor and the reading 'low performance'
i got a changed a few days later..& since then there doesnt seem to be as much power on take off as before

if i take it to a garage that specialises in remapping..would they be able to check the bhp of the car..?

 

[hooley]

You can calculate power from the torque measured through a VAG-COM

feul map is thought to be a basic map. As my car was chipped the basic ceiling map made the car run lean and hence burnt a small hole in a valve. If the car is standard you should be fine but lacking in performance and economy.

Jas

 

[hooley]

ceiling map

****** iPhones.

Should read "feuling map". Apologies

J.