ka24de has hard time cranking when warm

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asei6113
Posts: 5
Joined: Fri Nov 06, 2015 2:51 pm
Car: 93 240sx ka24de

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ok so I have a 93 hatch I have had this problem for two months it starts up fine when its cold but when I drive it an get it to temp then shut it off for more then 20 min an try to start it will crank an then slowly bogg down an die then it will not start I have to crank it like 10 times to get it to start back up then its fine it only dose this when its at temp an if I shut it off then run in a store for like five min it starts no problem it only dose if its longer then 20 min I cleaned the maf an the iacv an it made my car idle at1500/2000 rpm what would be the first thing I should try to fix this thanks


asei6113
Posts: 5
Joined: Fri Nov 06, 2015 2:51 pm
Car: 93 240sx ka24de

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:confused: I am new to this form so thanks for the help in advance

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PapaSmurf2k3
Site Admin
Posts: 18997
Joined: Thu Nov 21, 2002 3:20 pm
Car: 2017 Corvette, 2018 Focus ST, 1993 240sx truck KA Turbo.
Location: Merrimack, NH

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Welcome to NICO!
You should disconnect the battery for 15 or so minutes to clear all your long term fuel trims and idle solenoid targets after you cleaned the MAF and IACV.
It would be good to know if your vehicle is adding to much fuel, not enough fuel, or poor spark that is leading to the no start condition.
Try keying-off and on 5 or so times without starting. This should prime the fuel system and fire the injectors slightly. If that fixes your problem, let us know.

SoundEfx
Posts: 263
Joined: Thu Oct 16, 2014 3:54 pm

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Is your car smoking in any way and how many miles are on the car?
I ask because you might be losing compression. I hope what smurf suggested works.

asei6113
Posts: 5
Joined: Fri Nov 06, 2015 2:51 pm
Car: 93 240sx ka24de

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thanks I will give this a shot I will keep posted

asei6113
Posts: 5
Joined: Fri Nov 06, 2015 2:51 pm
Car: 93 240sx ka24de

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ok my egr was tube was cut to fit a header an I just put a delete plate an that helped it now cranks but still sputters a bit when its hot I disconnected the positive battery cable an that seamed to help my car run better butt now I jst cant get it to idle under 1500 I tried to adjust the idle screw on the iacv but nothing the car has 190,xxx miles an has good comp no smoke an runs strong . an thanks for the help guys

asei6113
Posts: 5
Joined: Fri Nov 06, 2015 2:51 pm
Car: 93 240sx ka24de

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it was the dame cruz control cable keeping the tb from closen all the way so I just removed it cause don't work anyways.now the car idles at 900 smooth thanks I think I'm going to b stuck on nico!!!

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PapaSmurf2k3
Site Admin
Posts: 18997
Joined: Thu Nov 21, 2002 3:20 pm
Car: 2017 Corvette, 2018 Focus ST, 1993 240sx truck KA Turbo.
Location: Merrimack, NH

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Congrats!
Thanks for following up!

SoundEfx
Posts: 263
Joined: Thu Oct 16, 2014 3:54 pm

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Glad you got it resolved.


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