General SAFC NEO problems

[black_gst]

ok so here goes, i was helping my friend install his NEO and we got everything hooked up and double checked everything to the ecu pinout to make sure its all correct. This is on a 90 gst with denso 660cc injectors by the way, so it idles fine and cruises great but theres this wall at about 5k rpm's/12psi's, it feels like fuel cut... now i know the injectors work great because they were on my car and i was boosting 25psi.

so to try and figure out the problem we swapped in the stock injectors and reconnected the MAS signal and striaght to the ecu and everything works fine.

i have never really messed with SAFC i went stright from the old 5 knob AFC to dsmlink .

so anyone had a similar problem? suggestions?

thanks

 

[xhackerekx]

maybe u instal ground wires to close ???

 

[black_gst]

the instructions are to tap into the ecu ground wires for ground

 

[xhackerekx]

yes just not together.
brown wire must be close to ecu.
http://www.apexi-usa.com/content/pdf6458.pdf

 

[black_gst]

maybe u instal ground wires to close ???

ok here you are saying that the ground wire is too close to the ecu?

yes just not together.
brown wire must be close to ecu.
http://www.apexi-usa.com/content/pdf6458.pdf

and here your saying it must be close

and together with what

please be more specific and clear

 

[xhackerekx]

brown wire must be close ecu and black like 2 inches from brown . sorry for my english.

 

[black_gst]

no problem ill give that a shot

well i just checked with my friend and he already did that so thats not it

 

[xhackerekx]

check throttle point setup .
u change fuel pump ???

 

[black_gst]

we tryed 30% and 50% for low and 80% for high

 

[xhackerekx]

set 30 on low and 75 on high
check fuel preasure.

 

[black_gst]

set 30 on low and 75 on high
check fuel preasure.

i really dont think 5% on high throttle will do anything. and it didnt matter what throttle point we were at high and low it did the same thing. and as i stated above the car is running fine on the stock injectors with the maf going stright to the ecu now so fuel pressure is fine

 

[xhackerekx]

u have stock injectors ?? check u wiring again.

 

[steve]

Make sure your NEO has been repaired/upgraded by Apex'i to fix the Karman MAF bug.

http://www.dsmtuners.com/forums/art...294820-apexi-neo-karmen-airflow-problems.html

http://www.dsmtuners.com/forums/newbie-forum/304105-apexi-neo-important-info.html

 

[black_gst]

well the version is 1.109 so it was made well after this problem... anymore ideas?

thanks guys

 

[xhackerekx]

check wiring maybe u just missing something.

 

[black_gst]

Make sure your NEO has been repaired/upgraded by Apex'i to fix the Karman MAF bug.

http://www.dsmtuners.com/forums/art...294820-apexi-neo-karmen-airflow-problems.html

http://www.dsmtuners.com/forums/newbie-forum/304105-apexi-neo-important-info.html

well never mind my friend remembered wrong. he working on getting it sent in to be fixed

good info, thanks steve!

 

[doctor_shock10]

Make sure your NEO has been repaired/upgraded by Apex'i to fix the Karman MAF bug.

http://www.dsmtuners.com/forums/art...294820-apexi-neo-karmen-airflow-problems.html

http://www.dsmtuners.com/forums/newbie-forum/304105-apexi-neo-important-info.html

apexi has very good customer service i had the same problem but i went dsmlink so apexi bought the neo back from me.