P0170 Code
Thread Starter
Senior Member
Joined: Jan 2009
Posts: 263
Likes: 1
C204, W209, W164
P0170 Code
A few weeks ago, the exhaust bottomed out and smacked the ground fairly loud while going around 70mph.
Ever since, I've gotten intermittent CEL's that will turn on and off whenever they'd like to. The only code stored is the P0170 code, indicating 'Fuel Trim Bank 1 (Right)'.
Is it possible that one of the o2 sensor itself is shot? Or what else could be the cause? Remember... this only happened AFTER the exhaust had smacked the ground. Haven't had a chance to get her on a hoist. But car has no hesitations with turning over or accelerating... just the issue of it throwing the code.
Ever since, I've gotten intermittent CEL's that will turn on and off whenever they'd like to. The only code stored is the P0170 code, indicating 'Fuel Trim Bank 1 (Right)'.
Is it possible that one of the o2 sensor itself is shot? Or what else could be the cause? Remember... this only happened AFTER the exhaust had smacked the ground. Haven't had a chance to get her on a hoist. But car has no hesitations with turning over or accelerating... just the issue of it throwing the code.
Senior Member
Joined: Sep 2004
Posts: 478
Likes: 6
CLK63 AMG Black Series
Could be an O2 sensor or partial blockage of exhaust flow or catalytic got damaged. You will definitely have to take a look underneath to determine. Would be odd if an injector or coil wire came loose or something similar. Let us know what you find.
