This is on a 2002 Mercedes see 240 you oxygen sensors have been replaced all four and the check engine light does not

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Customer: This is on a 2002 Mercedes see 240 you oxygen sensors have been replaced all four and the check engine light does not come on but I code comes up for fuel tank pressure switch The car has the monitors that will not clear the O2 & the cat Car has over 1,000
mi on it after clearing codes Check temp befor and after cat 240 / 380'
Answered by Lou Palomino in 2 days 7 years ago
Lou Palomino
Auto Mechanic

23,524 satisfied customers

Specialities include: Automotive Mechanic, Small Engine Repairs, Auto Body Repairs, Diesel Engine Repairs

Hello , sorry for the delay. The fault is with the fuel pump assembly. There is a fuel tank pressure sensor that is most likely your fault. The car does not have a fuel pressure sensor , if there is a fault with the system it will not perform all the other tests needed for emissions. Hope this information helps Please take a second and click the box and rate my service GOOD OR EXCELLENT SERVICE if you feel I have been helpful and please request me in the future. If you feel I have not been helpful please DO NOT RATE BAD OR POOR AND WASTE YOUR MONEY , I will opt out to see if another expert can provide more or better assistance so you're not wasting your money!!. Thanks for choosing just answer. Lou. also , if you feel i deserve one , BONUSES are GREATLY APPRECIATED ! 😉
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Lou Palomino
23,524 satisfied customers
Auto Mechanic
Lou Palomino
Auto Mechanic

23,524 satisfied customers



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Last Updated: 12-20-22
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