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sprinkles08, ASE Certified Technician
Category: Toyota
Satisfied Customers: 22826
Experience:  ASE Master and Advanced level certified. Factory trained with 15 years dealership experience
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Toyota Highlander: I have a 2003 Toyota highlander. recently

Customer Question

I have a 2003 Toyota highlander. recently had my exhast fixed and o2 sensor replaced. I am still getting a horrible smell coming in
Submitted: 2 years ago.
Category: Toyota
Customer: replied 2 years ago.
I have just put in new spark plugs, 02 sensor, right passenger side wheel caliper(yesterday)which was really smelling
.A new air compressor so my air conditioner now works, several new belts...But the engine light still comes on, and I get that horrible like carbon smell at first when I start. And my new belt squeles.Which they will do nothing about.
Customer: replied 2 years ago.
P0171>P0300 codes came up yesterday
Customer: replied 2 years ago.
Is any body still in touch??
Customer: replied 2 years ago.
10 minutes are up no response
Customer: replied 2 years ago.
I think I just threw away $28.00
Expert:  sprinkles08 replied 2 years ago.
Hello and welcome to JustAnswer!
Depending on what you're actually smelling it may be related to the P0171. P0171 sets when the engine is running lean and the engine controller is adding fuel to the extent of it's capability. This my be setting erroneously and causing the engine to run rich, which would cause an abnormal smell from the exhaust.
What oxygen sensor was replaced?

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