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2008 Toyota Corolla Verso High engine idle RPM from cold start
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golenman123
New User
Feb 26, 2023, 12:08 PM
Post #1 of 4
(1551 views)
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2008 Toyota Corolla Verso High engine idle RPM from cold start
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Hi, I've got a:
2008
Toyota
Corolla Verso
1.8 petrol (129HP variant)
Around 102,000 miles
My problem is that whenever I start my engine from a cold start, It idles at around 2000-2200 RPM. However, after the engine warms up it drops back down to the normal 700 RPM. I've been to a few mechanics and all of them have no idea what is causing this. I hoped you guys could tell me what could be the problem.
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Feb 26, 2023, 1:01 PM
Post #2 of 4
(1542 views)
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Re: 2008 Toyota Corolla Verso High engine idle RPM from cold start
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? How cold do you say cold is? If really cold engines do raise idle for a short while normally. The 700 RPM seems about right.
Is this new to you (the car) or a new issue?
Tom
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Hammer Time
Ultimate Carjunky
/ Moderator
Feb 26, 2023, 2:12 PM
Post #3 of 4
(1534 views)
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Re: 2008 Toyota Corolla Verso High engine idle RPM from cold start
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Sounds normal to me. They all start with higher RPMs from cold start. Hell, I'm in South Florida and at 85 degrees my car starts over 1500 RPMs but quickly comes down.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Sidom
Veteran
/ Moderator
Feb 26, 2023, 4:09 PM
Post #4 of 4
(1528 views)
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Re: 2008 Toyota Corolla Verso High engine idle RPM from cold start
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All cars now reset to a "cold start" mode when they are shut off, simply because the ECM doesn't "know" when the car will be started next. (maybe next week) If the engine has been run, it's warm enough outside and a few other things. The car/engine will start rise to around 1500 rpms and then drop to warm idle (700-800rpms) with in a few seconds.
If the idle stays high for a minute or longer on a warm engine and it's not extremely cold outside, then there is something going on. Codes would need to be pulled and a datastream looked at while the problem is going on. There are a lot of things that could cause an extented high idle. I suppose one of the easiest things would be a skewed coolant temp sensor where the ECM "thinks" the engine is colder than it really is.
Computers don't actually "think" but it's just easier explaining problems in terms of "think, knows, sees, etc 
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