1997 Mercedes Benz C230 Will not pass state inspection

1997 MERCEDES BENZ C230
107,453 MILES • 4 CYL • 2WD • AUTOMATIC
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RALPH GERARD
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I have just purchased this vehicle for my daughter, the engine had been only running on two cylinders so I changed the coil packs, plugs, air filter, fuel filter, P.C.V. valve, also had to change battery, upon completion vehicle runs fine, when I took it in for state inspection it failed for trouble code P1070, can anyone please help me with this problem.
Jul 18, 2008 at 4:41 AM
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RASMATAZ
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You sure its P1070 or P0170 which one?
Jul 18, 2008 at 6:07 AM
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RALPH GERARD
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[quote:df1b5555e5="rasmataz"]You sure its P1070 or P0170 which one?[/quote:df1b5555e5] sorry it is P0170
Jul 18, 2008 at 12:50 PM
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RASMATAZ
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P0170 its a fuel trimming problem -verify the oxygen sensor/s switching activity
Jul 18, 2008 at 5:17 PM
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RALPH GERARD
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[quote:fe4970ecd5="rasmataz"]P0170 its a fuel trimming problem -verify the oxygen sensor/s switching activity[/quote:fe4970ecd5]Both oxygen sensor's have been changed
Jul 23, 2008 at 4:20 AM
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RALPH GERARD
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[quote:731eada61f="rasmataz"]P0170 its a fuel trimming problem -verify the oxygen sensor/s switching activity[/quote:731eada61f]Both oxygen sensor's have been changed
Jul 23, 2008 at 4:21 AM
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RASMATAZ
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Try checking for vacuum leak and also injector's could be leaking and the fuel pressure regulator lfor eakage-
Jul 23, 2008 at 12:53 PM
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RALPH GERARD
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The problem turned out to be the mass air flow sensor, thank's for the help, Ralph Gerard
Aug 4, 2008 at 4:32 AM