Stump the Chump

Information on the naturally-aspirated KA24E and KA24DE engines.
riceburner88
Posts: 2
Joined: Sun Mar 23, 2008 4:53 am
Car: Nissan 240sx SE

Post

I've been trying to figure out why my 240 seems to want to loose power during engine decellaration. ATM i am having problems with my clutch, it wont engange or disengage but a clutch change is already in the works. This is my 2nd 240, i kinda wrecked the first one :cry: (dont drive when ur tired = dangerous!) :facepalm:. I remember from my first one that when i missed a gear and grinded during speed shifting the car would shut off kinda like this one is doing now, but i am asking for your help in relating my issue to my bad clutch or could it be another problem like a bad sensor somewhere, perhaps in my transmission? :gotme I have already change my plugs, cap and rotor and my fuel filter. Everytime the car shuts off like say at a stop light it starts right back up leading me to believe its not my fuel pump issue, i could be wrong :gotme . Any help at this point would be grand! :dblthumb:


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Ajax
Posts: 1643
Joined: Wed Mar 12, 2003 3:16 pm
Car: 1991 240sx SE
2010 Mazda 5

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riceburner88 wrote:I've been trying to figure out why my 240 seems to want to loose power during engine decellaration. ATM i am having problems with my clutch, it wont engange or disengage but a clutch change is already in the works. This is my 2nd 240, i kinda wrecked the first one :cry: (dont drive when ur tired = dangerous!) :facepalm:. I remember from my first one that when i missed a gear and grinded during speed shifting the car would shut off kinda like this one is doing now, but i am asking for your help in relating my issue to my bad clutch or could it be another problem like a bad sensor somewhere, perhaps in my transmission? :gotme I have already change my plugs, cap and rotor and my fuel filter. Everytime the car shuts off like say at a stop light it starts right back up leading me to believe its not my fuel pump issue, i could be wrong :gotme . Any help at this point would be grand! :dblthumb:
I'm having trouble figuring out exactly what problems you're having, could you be a bit more specific?

Everytime the car shuts off like say at a stop light
Does this ^^^ refer to the car dying when you push the clutch in while driving? If so, its a common problem, related to idle air control. If you clean out the IACvalve and reset the idle, that can help- I'm not sure there's ever been a sure-fire cure for this problem (mine wants to do it with a brand new IACvalve...)

riceburner88
Posts: 2
Joined: Sun Mar 23, 2008 4:53 am
Car: Nissan 240sx SE

Post

well i just changed my clutch today with success. bad news is it is now sputtering and loosing power in all gears, instead of just 1-3. i still dont think its my fuel pump. but the kicker is it still only does this when i let off the gas peddle to slow or stop. it doesnt seem to be consistant so im thinking a sensor going bad or a valve like ajax has suggested. either way ill keep fiddling. im just glad i can change gears now. you shoulda seen the metal shavings i wiped off my mag plug.


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