2003 Toyota Camry

Asked by Dec 27, 2018 at 04:27 PM about the 2003 Toyota Camry LE V6

Question type: Maintenance & Repair

I have a 2003 Toyota Camry. P0171 P0174 And
P0016 are the codes that appear when I check my
car. When I try to accelerate my car it slows down.
The mechanic is telling me it’s my timing belt and I
want to make sure I’m not getting taking
advantage of. I was thinking it was my fuel pump.
My car has broken down multiple times within a
two weeks span. Mechanics have replaced my
spark plugs as well saying that was the issue but it
didn’t resolve the problem at hand. Someone
please help

3 Answers


Codes P0171 and P0174 - vacuum leak or a bad mass air flow sensor ( maybe able to clean ). P0016 camshaft position sensor bank one.


the po 0016 indicates that your timing belt might have jumped a tooth, the other two mean that you may have a dirty MAP sensor or a vacuum leak.

Does that mean I have to replace the timing belt? My car sometimes won’t even crank up and when I try to accelerate at times it will decrease in speed and sometimes stops completely.

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