2015 Is350 goofy idle
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Rookie
Joined: Sep 2014
Posts: 54
Likes: 0
From: Minnesota
2015 Is350 goofy idle
Hey guys, I sometimes have a weird idle. When my car is cold the idle is fine. When the car is warm the idle is fine. The idle only gets weird sometimes when I drive the car, park it for an hour or so, start the car again (temp gauge is about half way from complete cold start to complete warmed up) and I get a fluctuating rpm tach. It bounces around 50-75 rpms for a while. You can definitely feel it in the car and if you stand behind the exhaust you can here it slightly burp/hiccup. The car has 16k miles on it and it's a 2015. The gas mileage and performance has not changed. I don't know if it has done this since day one as I usually have my radio on. I heard it once now I make a point to see if it does it. I also don't have any CEL on. Anyone have this same thing happen, and know what would cause this?
Is your air filter clean?
Do you have an aftermarket air filter like k&n? These can get oil onto the MAF (Mass Air Flow) sensor and cause weird idling issues.
You can also try cleaning the MAF sensor with a special solution made for MAF sensors, which you can obtain at a local autoparts store like Autozone, Advance Auto Parts, Oreily's, etc.
The spray I use is called CRC Mass Air Flow Sensor Cleaner.
http://www.autozone.com/miscellaneou...ner/36011_0_0/
Hope it helps
Do you have an aftermarket air filter like k&n? These can get oil onto the MAF (Mass Air Flow) sensor and cause weird idling issues.
You can also try cleaning the MAF sensor with a special solution made for MAF sensors, which you can obtain at a local autoparts store like Autozone, Advance Auto Parts, Oreily's, etc.
The spray I use is called CRC Mass Air Flow Sensor Cleaner.
http://www.autozone.com/miscellaneou...ner/36011_0_0/
Hope it helps
Driver
Joined: Jan 2009
Posts: 133
Likes: 4
From: Wisconsin
Hey guys, I sometimes have a weird idle. When my car is cold the idle is fine. When the car is warm the idle is fine. The idle only gets weird sometimes when I drive the car, park it for an hour or so, start the car again (temp gauge is about half way from complete cold start to complete warmed up) and I get a fluctuating rpm tach. It bounces around 50-75 rpms for a while. You can definitely feel it in the car and if you stand behind the exhaust you can here it slightly burp/hiccup. The car has 16k miles on it and it's a 2015. The gas mileage and performance has not changed. I don't know if it has done this since day one as I usually have my radio on. I heard it once now I make a point to see if it does it. I also don't have any CEL on. Anyone have this same thing happen, and know what would cause this?
Thread Starter
Rookie
Joined: Sep 2014
Posts: 54
Likes: 0
From: Minnesota
I have a clean air filter and it has been doing it from all different gas station. I only use 92 octane too. If it was a dirty injector, wouldn't it happen all the time at idle then? It only happens when I drive the car and park, get into the car about an hour later, and then start the car again.
Driver
Joined: Jan 2009
Posts: 133
Likes: 4
From: Wisconsin
I have a clean air filter and it has been doing it from all different gas station. I only use 92 octane too. If it was a dirty injector, wouldn't it happen all the time at idle then? It only happens when I drive the car and park, get into the car about an hour later, and then start the car again.
Lead Lap
Joined: Sep 2014
Posts: 434
Likes: 5
From: Moscow
My car has got the same "feature", so I think it's normal. Mileage is about 43000 km and I've used the original Toyota Injector Cleaner every 10000 km. Many owners just don't notice this idle jumping until someone tells about it )
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Joined: Sep 2014
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From: Moscow
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