Intermittent power loss :(
So the facts
- I have noticed my car do this more often as of the past past month
- I have 36000 miles on her
- I have no check engine lights
- My only engine mod is injen intake
- I only use 93 or higher octane since purchased new even had dealer fill it with 93
- I typically only fill up at shell or b/p
- I checked my plugs a long time ago and they were all within spec
Issue:
While driving I will notice sometimes a huge dip in torque in all gears. Almost as though my throttle position doesn't get read. It seems random at best, I have been looking for a common theme and have found nothing to link it to anything time, temp, gear, incline, weight, noise, shift pattern, electronics on or off.
Question: I want to know if anyone has experienced this and what was the resolve. Or how to properly Diag/Identify the problem.
- I have noticed my car do this more often as of the past past month
- I have 36000 miles on her
- I have no check engine lights
- My only engine mod is injen intake
- I only use 93 or higher octane since purchased new even had dealer fill it with 93
- I typically only fill up at shell or b/p
- I checked my plugs a long time ago and they were all within spec
Issue:
While driving I will notice sometimes a huge dip in torque in all gears. Almost as though my throttle position doesn't get read. It seems random at best, I have been looking for a common theme and have found nothing to link it to anything time, temp, gear, incline, weight, noise, shift pattern, electronics on or off.
Question: I want to know if anyone has experienced this and what was the resolve. Or how to properly Diag/Identify the problem.
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same scenarios it just happens once every other week for about 5-10 sec.
Its like the torque management system is cutting power. The only thing I can think of is that my oil life is low and the pcm is cutting duty.
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Totally random. It used to happen maybe once every three months now its like everyother week
I'm kinda running along the lines of 'heat soak'......operating conditions, specifically heat, ambient and underhood can create a situation that has you running on the edge of spark knock regardless of fuel grade.
These things have a very agressive spark retard schedule that pulls tons of timing and does not recover for several seconds.....makes for quite a lag.
Also....I'm suspicious of your intake.....the stock system pulls air from a point of fairly ambient air temperature.....I believe your system pulls more underhood (hot) air and could put you closer to that timing 'edge' I mentioned.
Rob
These things have a very agressive spark retard schedule that pulls tons of timing and does not recover for several seconds.....makes for quite a lag.
Also....I'm suspicious of your intake.....the stock system pulls air from a point of fairly ambient air temperature.....I believe your system pulls more underhood (hot) air and could put you closer to that timing 'edge' I mentioned.
Rob
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eco M/T
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Its a true cold air so same location as factory. Bottom of the bumper, SCARY to think about with heavy rain.
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I am gonna try to monitor IATs just incase in the mean time its just hard with the whole does it when it wants to. I am also thinking wastegate sticking...
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Sounds more like a turbo issue. The po299 issues doesn't always set off the CEL
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Why would you say that?
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Not holding boost do you hear a flutter between gears or while spoiling?
I had the same issue before at one time
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you not noticing this after refueling are you? Or sometime shortly after
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maybe... i dont know. Why may I ask?
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No no flutter but usually my stereo is up along with the windows...I will keep an ear out
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I am gonna refuel today so I will really keep my eye on it.
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84 Posts
I have the same issue.
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10,589 Posts
Being an Eco, the FMIC is sammiched in between the radiator and condenser with shutters closed. If the car doesn't think it's hot,(from what I been reading) the shutters usually stay closed. I usually feel what you describe when I do a hard pull to get on freeway and merge. I usually have to wait a few before making another hard pull or it feels a bit sluggish tune or not.
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