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2011 Honda Civic 1....
 
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2011 Honda Civic 1.8L Petrol Automatic - bad LTFT

  

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Topic starter

I've tried everything

 

- Cleaned MAF sensor (checked by mechanic, working perfectly) 

- multiple bottles of BG injector cleaner 

- ERG cleaned 

- Mechanic checked for leaks (none) 

- Mechanic Checked the Cat - fine

- New fuel filter

- New 02 sensor 

- Cleaned throttle body

- New spark plugs

- Changed fuel station 

 

Nothing has helped. 

LTFT is around -9.4

STFT is around the same ... both negative 

 

Ideas?


2 Answers
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How many miles on the clock? Have you did the valve adjustment? Also it is a good idea to clean the injectors using pressure cleaning.


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Topic starter

190,000 km - 118,000 miles ... 

 

i havent done any valve adjustments ... 


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