Thread: sr20de+t fuel problems

thanks for the info guys

i bought the ECU already reprogrammed but it's a same year ecu
i don't think that the ecu is programmed for a different maf
i'll check the TPS and other things mentioned and i'll let you guys know

call jwt and have ben verify the code on ecu. its written on the top and on the chip on the daughter board. Make sure both codes match. Also doing a hard reset on the ecu will require the use of a consult II or nissan data scan. If you clear out all values stored on the ecu for certain sensors the ecu will go into learn mode and the car should run better. You also may want to check the seals on the injectors. Just pressurize the fuel rail with the rail not on the motor and make sure there are no leaks.

im having, some kinda prob like this, my cars run rich as hell, and when runing it after 5.5k rpm it start doing some explotions or detonations, it pulls very well until 5500 and then the fireworks starts... i checked the inyectors are ok, the tps its .45 so far, timing i dont know . have N60maf, calum w/program for this and 370's. i have not checked for leaks what else can i check?

reground the the maf to the intake manifold and do not reconnect the factory ground. I would also check the cap, rotor, plug wirers, and plug gap.

the n60 has 2 gorund wires, both of them should reground? the cap its Ok, the rotor less thank 5000miles plug wires new and gap do not remember.

thanks a lot

that sounds like the same problem i have, but you're car is running alot leaner than mine
that's the explosions
do you have a exhaust temp gauge or an A/F ratio gauge?
if your seeing fireworks it's probably above 1500 degrees which is bad

today i switched back to my oem ECU
and it worked much better than with the JWT ECU
it's running super lean at idle (it's reaching and probably passing the Widebands max range which is 1590 degrees) but when i run it and accelerate it, it goes down around to 1200 degrees which is around where it should be, and it doesn't have any problems whatsoever when it's running
also the idle is kinda high and it goes up and down
with the JWT ECU it had lumpy idle

join both grounds together and ground them to the same point. the intake manifold, frame rail or the stock ground on the thermostat housing are good places.

lumpy idle is from the sensor memory not matching your car. its usually the tps memory that does that.

^^ how can u delete memory from the tps??