JWT ECU Trouble - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

StoneBoy · 11-24-2006, 11:31 PM

Hey I have a '98 240SX with a turbocharged KA24DE and I just installed a Jim Wolf Tech ECU that was originally a '96 ECU. I did all the necessary wiring that was stated in the PDF file Here
I also installed a Z32 MAF as per instructions in PDF File Here
However, now whenever I turn on my car, it's fine for a second or two and then starts bouncing off of 500RPM while the car shakes like crazy and if I try to give it gas it just dies. I also have a Apexi SAFC, I changed all the tuning to 0%, but I heard I gotta do something with the sensor types since I changed it to a Z32 MAF, is that the problem? Any help would be great.
(BTW, the ECU is already programmed to work with the Z32 MAF)

TooFartyS14 · 11-24-2006, 11:51 PM

is the jwt tuned for a setup close to yours? i.e. injectors, maf, turbo .......etc

StoneBoy · 11-24-2006, 11:54 PM

I bought the ECU directly from JWT, its EXACTLY what my car is.

bardabe · 11-24-2006, 11:55 PM

Quote:

Originally Posted by TooFartyS14

is the jwt tuned for a setup close to yours? i.e. injectors, maf, turbo .......etc

yes the ECU is tuned for N62 z32 maf, 370CC INJECTORS and so on. we swaped out the earlier style 3 wire 02 sensor. and reppined the ECU as stated on the ECU....

KAT · 11-25-2006, 12:53 AM

if you had jwt program the ecu for the mafs, you don't need to change anything on any piggybacks you have. i have the same setup, i checked with them, it should work on the "stock" ka settings.
check your maf, sounds like that might be the issue....

11-24-2006, 11:31 PM	#1
StoneBoy Join Date: Oct 2006 Location: In da Hills of Chino Posts: 4 Trader Rating: (0) Feedback Score: 0 reviews	JWT ECU Trouble Hey I have a '98 240SX with a turbocharged KA24DE and I just installed a Jim Wolf Tech ECU that was originally a '96 ECU. I did all the necessary wiring that was stated in the PDF file Here I also installed a Z32 MAF as per instructions in PDF File Here However, now whenever I turn on my car, it's fine for a second or two and then starts bouncing off of 500RPM while the car shakes like crazy and if I try to give it gas it just dies. I also have a Apexi SAFC, I changed all the tuning to 0%, but I heard I gotta do something with the sensor types since I changed it to a Z32 MAF, is that the problem? Any help would be great. (BTW, the ECU is already programmed to work with the Z32 MAF)

11-24-2006, 11:51 PM	#2
TooFartyS14 Leaky Injector Join Date: Jan 2003 Location: Houston Age: 41 Posts: 54 Trader Rating: (0) Feedback Score: 0 reviews	is the jwt tuned for a setup close to yours? i.e. injectors, maf, turbo .......etc __________________ Ron Image Exceeded Forum Limits

11-24-2006, 11:54 PM	#3
StoneBoy Join Date: Oct 2006 Location: In da Hills of Chino Posts: 4 Trader Rating: (0) Feedback Score: 0 reviews	I bought the ECU directly from JWT, its EXACTLY what my car is.

11-25-2006, 12:53 AM	#5
KAT Join Date: Sep 2006 Location: Socal Age: 45 Posts: 10 Trader Rating: (0) Feedback Score: 0 reviews	if you had jwt program the ecu for the mafs, you don't need to change anything on any piggybacks you have. i have the same setup, i checked with them, it should work on the "stock" ka settings. check your maf, sounds like that might be the issue....