ka24et help

Your premier source for information on the Turbo KA: KA24E-T and KA24DE-T (KA with aftermarket turbo kit)!
amvpv17
Posts: 6
Joined: Sat Jan 09, 2010 3:32 pm
Car: Thunderbird SC , 240sx

Post

built

2.4 ka24e, t3 turbo, stock injectors, stock fuel pump, 10:1 FMU and stock FPR. no tune, time not retarded yet

I just finish turboing my ka motor and im having a problem.

When driving the car the car wont go into boost, the car wont rev past 2000 rpm when stop it idles good and rev good with no problem but when driving that i hit it the car like bugs out at 2000 and wont pass 2000rpm idk what it could be any help would be helpfull



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Doya
Posts: 1245
Joined: Thu Apr 02, 2009 11:30 am
Car: '95 240sx KA-T
Location: MD

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If it idles good and won't rev past 2500, thats probably your mafs. Also, I wouldn't use a 10:1 FMU, your going to be running too rich with that. Try a 6:1.

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Chris28
Posts: 3159
Joined: Sat Jul 14, 2007 11:18 am
Car: 92 s13 KA-T
Location: 757/919
Contact:

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Get yourself a walbro and a new FPR while you're at it. Your stock pump won't last long pumping the pressure needed for boost, and your fpr won't handle it either.

And get a 6:1

r3v_v3ng3
Posts: 868
Joined: Sat Feb 24, 2007 7:53 pm
Car: 91 fastback ka-t

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you should get it tuned specially when its "built". also retard your timing and colder plugs

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WDRacing
Moderator
Posts: 15983
Joined: Mon Nov 25, 2002 2:00 am
Car: 95 240SX, 99 BMW 540i, 01 Chevy Express, 14 Ford Escape
Location: MFFO
Contact:

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I'd beg/borrow/steal a MAF for troubleshooting. It sounds like a MAF issue, one that causes the ECU to go into what we call "limp home mode". Which means the ECU knows something is broken, so it retards timing and doesn't allow the engine to rev past 2500.

Try to find a known good MAF and test it out. Let us know.

WD

amvpv17
Posts: 6
Joined: Sat Jan 09, 2010 3:32 pm
Car: Thunderbird SC , 240sx

Post

ok i had to order a new maf cuz no one had one around so im hoping is the maf

amvpv17
Posts: 6
Joined: Sat Jan 09, 2010 3:32 pm
Car: Thunderbird SC , 240sx

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so i got my new maf and i put it in and i start the car it starts and then dies on me i go check the maf to see if is disconnecred and i see my water pump went out, so then i put in a new pump and thermostat and try to start the car again and the car starts but dies. I check my ecu for codes and it gives me a code 13(Coolant Temperature Sensor)and code 41(Intake Air Temp Sensor) wich i took of i dont see how any of this things could be the problem

i did i little bit of searching on the net and found this out it could be the cus of all my problems http://www.dnd-automotive.com/tuneup/sensors.htm
Modified by amvpv17 at 1:15 AM 1/25/2010

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WDRacing
Moderator
Posts: 15983
Joined: Mon Nov 25, 2002 2:00 am
Car: 95 240SX, 99 BMW 540i, 01 Chevy Express, 14 Ford Escape
Location: MFFO
Contact:

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On the 240SX all of the sensors are required. It won't run well with any sensors missing or bad.

WD

amvpv17
Posts: 6
Joined: Sat Jan 09, 2010 3:32 pm
Car: Thunderbird SC , 240sx

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shes on the road and on boost got it all fix

gian52
Posts: 40
Joined: Wed Mar 26, 2008 5:51 pm
Car: 240sx s14 95
Contact:

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dude can you tell me what did u do to fix it my car does the same thing


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