No, it's my understanding the surging/oscilations mostly noticible in cars with manual tranny and cold climate. Mine is neither.Do you see the cold idle surging that some other have seen?
I'm still debating if new gasket is needed. According to this: http://toyota-solutions.blogspot.com/2011/02/got-p0171-blues-in-your-toyota-corolla.htmlIf you still have the original intake manifold black rubber gasket, it most likely is leaking. Replace with Toyota's revised orange silicone gasket # 17171-22060.
I do the same when it's cold. I live in a desert, so I admit in the summer I don't bother being as kind because it warms up so quickly.My 2001 idles at about 12-1400 RPM and slowly goes down as it warms up. Then about 800 RPM. I try to keep it under 1500 rpm for a slow drive of 2 miles to the highway where 2000 rpm is 60MPH. It has just turned 100,000.
Mine is even lower miles, 86,288 as you can see from the video. But, they are mostly city miles at 20-25 mph average speed. So this engine saw similar hours as 160,000-240,000 miles of hwy driving. Mine developed mild oil consumption a couple of years ago, even with 4,000-5,000 mile OCI, and iridium spark plugs had visible wear at 75,000 miles.Great video! Fortunately my 2003 Corolla has not had any similar issues. It is now over 10 years old and has only 89,000 miles. I'm wondering if that engine will ever require any repairs?
Oooops...maybe I shouldn't have said that!
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