
Fuel additives to clean the injectors and this helped for a short time. 2) I cleaned the mass airflow sensor which was pretty easy. A bolt, a power clamp and some brake cleaner worked just fine. It helped for a year. 3) Finally I replaced this gasket and it finally solved my problems! Fits perfectly! If you are a DIY enthusiast and know very little like me, you can get it. I found a pretty good video online with minimal search, but I can't include a link here because it's against product review guidelines. Also, I found a good website that talked about the P0171 blue paint on these Toyotas. Overall a great product, a perfect fit for the 2006 Toyota Corolla S and at a good price.

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