Hard pull, car wants to stall when breaking

[mvs2]

Hey guys,

Trying to diagnose this, after a decent pull the car wants to stall when I touch the break pedal. This isn't an issue with regular driving only after a pull.


The battery light would come on when I touched the break and shut off if I let off the break. I had originally thought it was just an electrical issue but my car finally did stall on me.


SR20DET
S14 turbo
1bar boost
Unknown injector size
255 lph fuel pump

Does run rich.


Any suggestions?

If you guys need more info let me know I'll do what I can to provide the necessary info.

[markc32]

batt light on....its ur alternator not charging it and ur batt got a bad cell

[mvs2]

Hmm, it fires up right after again. It doesn't happen during regular driving no matter how hard I break from a 100 kmh or a 20kmh it doesn't give me the light. Only after a good boost pull.

[Marus92]

I think it's electrical... something under load drains the system and starves the ECU, EFI and injectors. When it fires up again, it's because it got juice back. Now, when you touch the break pedal huh? Like touch touch (grounding with your foot) or actually push (actuating the tailights)?

I know that my GTR's rear tailights dim lightly when I go WOT, so i guess they suck up some good power.

Here's a test to see if it's electrical load related; put your high beams on instead of braking, see if it stalls.

Edit: Do you have a voltage gauge? Check it out while you drive. You could wire a multimeter to your harness and get a sensitive reading. Sadly I'm not sure which wire to connect to