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1997 Mercedes Benz C230 Will not pass state inspection

Tiny
RALPH GERARD
  • MEMBER
  • 1997 MERCEDES BENZ C230
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 107,453 MILES
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.
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Friday, July 18th, 2008 AT 4:41 AM

7 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
You sure its P1070 or P0170 which one?
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Friday, July 18th, 2008 AT 6:07 AM
Tiny
RALPH GERARD
  • MEMBER
  • 7 POSTS
Sorry it is P0170
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Friday, July 18th, 2008 AT 12:50 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
P0170 its a fuel trimming problem -verify the oxygen sensor/s switching activity
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Friday, July 18th, 2008 AT 5:17 PM
Tiny
RALPH GERARD
  • MEMBER
  • 7 POSTS
Both oxygen sensor's have been changed
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Wednesday, July 23rd, 2008 AT 4:20 AM
Tiny
RALPH GERARD
  • MEMBER
  • 7 POSTS
Both oxygen sensor's have been changed
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Wednesday, July 23rd, 2008 AT 4:21 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Try checking for vacuum leak and also injector's could be leaking and the fuel pressure regulator lfor eakage-
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Wednesday, July 23rd, 2008 AT 12:53 PM
Tiny
RALPH GERARD
  • MEMBER
  • 7 POSTS
The problem turned out to be the mass air flow sensor, thank's for the help, Ralph Gerard
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Monday, August 4th, 2008 AT 4:32 AM

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