p0170 fuel trim (bank 1)

98q76e12hrflnk

Hi guys,

So after getting a warning light on my dashboard I went to a mechanics he did the found the problem was the p0170 fuel trim(bank 1) from dignostics report. He also said I need to replace the lambdha sensor. It will cost 170 and 180 for the sensors + 60 hour for labour. Is the price about right?

dar_cool

Collins Panicky Muffin wrote: »

Hi guys,

So after getting a warning light on my dashboard I went to a mechanics he did the found the problem was the p0170 fuel trim(bank 1) from dignostics report. He also said I need to replace the lambdha sensor. It will cost 170 and 180 for the sensors + 60 hour for labour. Is the price about right?

Sounds about right , if your anyway handy with tools you could do it yourself.

Bigserious1

Mercedes? Pretty sure I had the same code and it was an intake hose that had perished making the car run too lean.

mullingar

Don't go changing oxygen (lambda) sensors with a p0120 fault code just in case that's the fault. Get it diagnosed properly

Have a read of that code here;
https://www.yourmechanic.com/article/p0170-obd-ii-trouble-code-fuel-trim-malfunction-bank-1-by-andrew-quinn

Leonard Hofstadter

What mullingar said - it's not guaranteed that it's the O2 (lambda) sensor which is causing the fault based off the code alone. It could be, but it could also be a fuel pump or filter (in either case, it won't be taking in enough fuel and then the fuel trim will be out of acceptable limits).

There's no point in changing parts just for the sake of it unless the particular car has some known common faults and it's best to just change the parts any way in case they fail at an inconvenient moment.

98q76e12hrflnk

Just for clarity its an opel astra. The p0170 was diagnosed but the garage. 170 each for the sensor seems excessive but if not ill just book the car in