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Car Forum / Mercedes-Benz Cars / April 2006E320 code P0170
Hi, this car has 37K miles and runs good but occasionally gives me a check engine light with either a code P0170 or P0173 Fuel trim malfunction. Can anyone tell me what this is and how I can fix it? I can't really afford to take it in unless I have no other options. Thankyou 1999 California car > Hi, this car has 37K miles and runs good but occasionally gives me a check > engine light with either a code P0170 or P0173 Fuel trim malfunction. Can > anyone tell me what this is and how I can fix it? I can't really afford to > take it in unless I have no other options. > Thankyou Ouch..... if I remember right, for the 99 model year, only the C230 is covered for the air mass. I will let you know tonight. > 1999 California car > [quoted text clipped - 3 lines] > > take it in unless I have no other options. > > Thankyou Sometimes this can be as simple as a loose gas filler cap. Other times not. Before running to the garage inspect the seal and make sure that you are closing it tightly when filling the tank. > Hi, this car has 37K miles and runs good but occasionally gives me a check > engine light with either a code P0170 or P0173 Fuel trim malfunction. Can > anyone tell me what this is and how I can fix it? I can't really afford to > take it in unless I have no other options. > Thankyou 99.999999% its gonna be the mass air flow sensor,see all the time here in the shop where i work. Are you in US? Just wonder any idea to reset service warning light on 98 E320? Thanks > 99.999999% its gonna be the mass air flow sensor,see all the time here in > the shop where i work. You're right it WAS the MAF which I removed and very very very carefully cleaned with a (smoking) pipe cleaner. It's been about a year and no new codes! '97 E320 Don't mean to sound too ignorant about this but the MAF appears to be a common item that needs maintenance. Where exactly can I find the MAF in this car? Thanks |
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