# engine just started losing power - could be weather related?

**URL:** <https://forums.speedlife.net/t/engine-just-started-losing-power-could-be-weather-related/90685>\
**Category:** SON240sx Automotive\
**Created:** [November 26, 2005, 4:09pm UTC](https://forums.speedlife.net/t/engine-just-started-losing-power-could-be-weather-related/90685 "2005-11-26T16:09:54Z")\
**Posts on this page:** 9\
**Page:** 1

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**Author:** ![alesserfate](https://avatars.discourse-cdn.com/v4/letter/a/f6c823/32.png) [@alesserfate](https://forums.speedlife.net/u/alesserfate)\
**Post date:** [November 26, 2005, 4:09pm UTC](https://forums.speedlife.net/t/engine-just-started-losing-power-could-be-weather-related/90685/1 "2005-11-26T16:09:54Z")

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hey guys

just to begin with: i have a 89 240sx fastback with a ka24e, i did the timing chain, injectors, fuel pump, all ignition components, and the maf sesor, ats sensor, all of that is good and properly wired, i have enough oil and its clean

problem: just as the cold weather hit, i dont know it might be a coincidence, the engine just runs slow, it revvs slow, and accelerates slow, sometimes its ok, but other times its just like bogging down like a fat cow

anyone know what this might be ? i know people say dont jump to conclusions just check one thign at a time, that was the rule when i worked at the engine shop but the thing is i dont have the money or time to do that right now

please revert from posting stupid things like: time for an sr swap, de swap, another kae swap, just post if you think you know what this might be, thanks.

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**Author:** ![240GTR](https://avatars.discourse-cdn.com/v4/letter/2/8e7dd6/32.png) [@240GTR](https://forums.speedlife.net/u/240GTR)\
**Post date:** [November 26, 2005, 4:16pm UTC](https://forums.speedlife.net/t/engine-just-started-losing-power-could-be-weather-related/90685/2 "2005-11-26T16:16:13Z")

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compression?

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**Author:** ![alesserfate](https://avatars.discourse-cdn.com/v4/letter/a/f6c823/32.png) [@alesserfate](https://forums.speedlife.net/u/alesserfate)\
**Post date:** [November 26, 2005, 4:17pm UTC](https://forums.speedlife.net/t/engine-just-started-losing-power-could-be-weather-related/90685/3 "2005-11-26T16:17:56Z")

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i know engine eats a little oil, so i was thinking about that too, but its not shaky enough to be a dead piston chamber, i know when a customer just lost a ring at 300xxxkm on a tercel it was all shaky and would stall out, but my car runs smooth so i dont know

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**Author:** ![Alex](https://avatars.discourse-cdn.com/v4/letter/a/db5fbb/32.png) [@Alex](https://forums.speedlife.net/u/Alex)\
**Post date:** [November 26, 2005, 5:52pm UTC](https://forums.speedlife.net/t/engine-just-started-losing-power-could-be-weather-related/90685/4 "2005-11-26T17:52:04Z")

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> [@alesserfate](#):
>
> i know engine eats a little oil, so i was thinking about that too, but its not shaky enough to be a dead piston chamber, i know when a customer just lost a ring at 300xxxkm on a tercel it was all shaky and would stall out, but my car runs smooth so i dont know

what weight of oil are you using?

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**Author:** ![alesserfate](https://avatars.discourse-cdn.com/v4/letter/a/f6c823/32.png) [@alesserfate](https://forums.speedlife.net/u/alesserfate)\
**Post date:** [November 26, 2005, 5:53pm UTC](https://forums.speedlife.net/t/engine-just-started-losing-power-could-be-weather-related/90685/5 "2005-11-26T17:53:23Z")

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10w30 amsoil, i know in the winter i should be using 5w30 but since i drive me engine hard and it runs hot it shuoldnt matter, i always let it warm up anyway

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**Author:** ![jjm\_240sx](https://avatars.discourse-cdn.com/v4/letter/j/b77776/32.png) [@jjm\_240sx](https://forums.speedlife.net/u/jjm_240sx)\
**Post date:** [November 26, 2005, 7:29pm UTC](https://forums.speedlife.net/t/engine-just-started-losing-power-could-be-weather-related/90685/6 "2005-11-26T19:29:01Z")

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cold should not effect it. hows your coolent? ice in the morning?  
I think there is somthing wrong. hows your gas milage?  
oem air filter? is it cloged?

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**Author:** ![alesserfate](https://avatars.discourse-cdn.com/v4/letter/a/f6c823/32.png) [@alesserfate](https://forums.speedlife.net/u/alesserfate)\
**Post date:** [November 26, 2005, 10:04pm UTC](https://forums.speedlife.net/t/engine-just-started-losing-power-could-be-weather-related/90685/7 "2005-11-26T22:04:43Z")

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my coolant is 50/50 water/antifreeze i did a rad flush this summer so its nice and clean, its not ice, i have an aftermarket cone filter thats sized right for the ka, i use to have a small one and it robbed power but now it seems good, its fairly clean i just installed it recently, gas milage seems a bit less than before, i get 400km/tank appx but i drive angrily and i run walbro fuel pump, big exhaust and high flow cat so maybe its just the performance that eats up the gas

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**Author:** ![pearlS13](https://avatars.discourse-cdn.com/v4/letter/p/e68b1a/32.png) [@pearlS13](https://forums.speedlife.net/u/pearlS13)\
**Post date:** [November 27, 2005, 10:51am UTC](https://forums.speedlife.net/t/engine-just-started-losing-power-could-be-weather-related/90685/8 "2005-11-27T10:51:48Z")

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clogged cat maybe?

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**Author:** ![alesserfate](https://avatars.discourse-cdn.com/v4/letter/a/f6c823/32.png) [@alesserfate](https://forums.speedlife.net/u/alesserfate)\
**Post date:** [November 27, 2005, 11:00am UTC](https://forums.speedlife.net/t/engine-just-started-losing-power-could-be-weather-related/90685/9 "2005-11-27T11:00:15Z")

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i got a magnaflow hiflo cat just recently, im gonna see if i can do a compression test today and see the readings.
