KA-T Throwing code 21 and not idling

Your premier source for information on the Turbo KA: KA24E-T and KA24DE-T (KA with aftermarket turbo kit)!
alpalwal
Posts: 132
Joined: Mon May 02, 2005 8:27 pm

Post

Alright, I have a KA-T setup that has taken me forever to get this far. I've had problems left and right but I think I'm getting closer to the finish.

Built KA24DEHolset H1C turbo Emance ecu SAFC and wideband for monitoringZ32 Maf950cc injectors

I had installed the maf, injectors, and ecu all at the same time because I can't install one without the other because of the pre-tuned maf. When I hooked it up the ecu went into safe mode and the car was running awful.

I sent the ecu back and apparently something had shorted it out. I had it all fixed up and just got it back today. I went over all the recent wiring I had done and fired up the car.

It runs wayyy better than it did before and it's not throwing huge clouds of white smoke out of the exhaust. It still is not running well though and it won't idle.

I checked the ecu and it's throwing a code 21. It said it was something regarding the coil signal but apparently it's getting at least some signal considering the car is running.

What should I check first/ where do I go from here?


alpalwal
Posts: 132
Joined: Mon May 02, 2005 8:27 pm

Post

up up up

User avatar
1mansho
Posts: 105
Joined: Sat Jan 26, 2008 11:14 pm

Post

throw that emance tune in the trash, its probably whats causing you problems.

User avatar
GEO
Posts: 6449
Joined: Mon Jul 07, 2003 3:15 pm
Car: 95 240sx KA-T
Contact:

Post

21 I beleive is the knock sensor

User avatar
Razi
Posts: 28373
Joined: Sun Dec 31, 2006 9:52 am
Car: Moo

Post

Here are a list of ECU codes.

http://www.ka24development.com/ecu_codes.html

User avatar
neverlift
Posts: 3699
Joined: Mon Apr 24, 2006 6:26 am

Post

code 21 is primary ignition signal, which could be the ecu(only cause of the emance tune),coil,or the power transistor....

I'd check out the ecu solder joints, normally if its running this code is impossible to throw!

Kakid240
Posts: 11
Joined: Wed Nov 25, 2009 6:33 pm

Post

did you find out what the problem is i am having the SAME exact problem

RunninMeBrokeS13
Posts: 21
Joined: Fri Nov 27, 2009 7:18 am
Car: 91 240sx

Post

Ignition signal in the primary circuit is not being entered to the ECU during cranking or tuning.

i made the same mistake when i first started a few year back e-mance is junk. jason sent me like 4 or 5 tunes on the chips and they all where s*** garbage then the last one i received from him the ecu fried out. ordered myself a nistune and never ever had any problems since. just get rid of the e-mance. you mab be better off with a dam safc...

User avatar
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:

Post

Emance = garbage. Far to many issues to ever buy something from him.

950 injectors are huge, how much boost are you going to run?

WD


Return to “KA24ET / KA24DET Forum”