Fuel Composition Sensor (P0178) - SOLVED

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

OR VietVet

Multnomah Falls
Supporting Member
Military
Joined
Oct 8, 2014
Posts
19,069
Reaction score
31,173
Location
Willamette Valley
So, parts replacement DID fix the problem? Roadtest results and how long or far on the roadtest?
 
OP
OP
RAMurphy

RAMurphy

Bob
Supporting Member
Joined
Oct 5, 2011
Posts
1,113
Reaction score
3,235
Location
S. Maryland
@OR VietVet So for reference, prior to replacing I cleared the code several times and would get the code again within driving 2-5 miles after my baby was warmed up. I would get two codes, both P0178, one actual code and then the pending. After the change, I still smell like gasoline, no codes after 5+ miles.
 

OR VietVet

Multnomah Falls
Supporting Member
Military
Joined
Oct 8, 2014
Posts
19,069
Reaction score
31,173
Location
Willamette Valley
Drive it. Unless you have a fuel leak from you messing up the install. You are still smelling the fuel spill.
 
Last edited:

Fless

Staff member
Super Moderator
Joined
Apr 2, 2017
Posts
10,246
Reaction score
20,306
Location
Elev 5,280
It would be interesting to see what the ethanol content reads now, especially if you know how much (if any) is in the tank. Maybe fuel trims, too.
 

Forum statistics

Threads
128,791
Posts
1,805,524
Members
91,774
Latest member
jkavros
Top