Rough idle (near stall), CEL, loss of power
#1
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A little background.. It's a 2012, purchased CPO almost 3 months ago. 11.3K miles currently. I'd noticed what I thought was a slightly low idle on occasion when stopped (which is apparently not unusual for this car). However, it hasn't given me any problems before today.
Today, just as I left a nearby grocery store to go home, I approached an intersection to turn right. As I slowed to a stop, it began to idle very low & rough (nearly stalling). As soon as I turned and accelerated, the CEL came on and there was a loss of power. I was ~1 mile from home, so I kept going rather than stopping & ending up leaving the car somewhere. Other than the rough acceleration and lack of power, it made it home OK.
When I got home, I shut it off, waited a min, then started it up again.. No more CEL, so I took it around the block and it felt fine. I plan to take it to the dealer in the morning for diagnosis, but I'm concerned about it reoccurring on the way there (dealer is ~20 miles from home).
Anyone had any experience with symptoms like this? BTW, car was plenty warm as I'd just finished my 28 mile commute home when I stopped for gas & store. Thanks.
-Mike
Today, just as I left a nearby grocery store to go home, I approached an intersection to turn right. As I slowed to a stop, it began to idle very low & rough (nearly stalling). As soon as I turned and accelerated, the CEL came on and there was a loss of power. I was ~1 mile from home, so I kept going rather than stopping & ending up leaving the car somewhere. Other than the rough acceleration and lack of power, it made it home OK.
When I got home, I shut it off, waited a min, then started it up again.. No more CEL, so I took it around the block and it felt fine. I plan to take it to the dealer in the morning for diagnosis, but I'm concerned about it reoccurring on the way there (dealer is ~20 miles from home).
Anyone had any experience with symptoms like this? BTW, car was plenty warm as I'd just finished my 28 mile commute home when I stopped for gas & store. Thanks.
-Mike
#3
Lead Lap
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i've had the same, slightly low/rough idle while sitting at the stop light. when the light turned green, the car would accelerate just fine. i've never had it happen more than once in any given leg of a trip. in the last 2 years i've owned the car, it's happened about 5 times total. bc it hasn't been a consistent thing and it's never gotten to the point where i've thrown a code or CEL, never had it checked out. curious to see what the dealer finds.
#4
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is the car OEM ?
do you have a obd2 scanner ? ready to scan for code
if the chk engine light come on and off after the restart the car and " power loss "
it maybe possible, one of your o2 is doing something fishy so it may mess with A/F reading or voltage to the ecu ?
if it is the oem bring it to the dealer to look into their computer ... connect
make sure your dealer dont do any things like " let us duplicate the issue and see what happen ? "
do you have a obd2 scanner ? ready to scan for code
if the chk engine light come on and off after the restart the car and " power loss "
it maybe possible, one of your o2 is doing something fishy so it may mess with A/F reading or voltage to the ecu ?
if it is the oem bring it to the dealer to look into their computer ... connect
make sure your dealer dont do any things like " let us duplicate the issue and see what happen ? "
#6
#7
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Im in NOVA and have the same issue except without the CEL. Mine happens if I get on the throttle a bit before making it to a light. If cruising before hitting a light I get no such symptoms. I'm not concerned.
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#12
Lexus Fanatic
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My LS 460 used to idle low when AC was off. I told the dealer and they said all was fine. It was annoying although it rarely happened . If it happens again turn on your AC
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