wexpac

thx I forgot to mention the guy i bought the car form last week said he had a engine diagnosis check and no codes were pulled so could that throw out a few of those options? would the fuel pump show up on a diagnosis?

prolifik22

i have juz bought a sc400 came with the puttering and started with the tune up and now goin to the timing belt cuz its warn and cracked...

but my question is what mod shld be performed to fix the fuel? the inline relay one or the cut and jump plug one? also a few pic's maybe ...

juz really tryin yo get the car to stop puttering....

also what would cause the break light to be on?

in advance thanx for ur advice and time

Ali SC3

iTrader: (10)

break light is probably the switch under your break pedal is broken.
once it breaks the brake lights stay illuminated to let you know something is wrong.

as for the relay or the cut and jump its up 2 u.
the cut and jump is much easier/quicker but slightly dangerous
and the relay takes longer to do but safer.

you could always just jump it to test it out and if that the fix then do the relay. hope that helps.

prolifik22

did the jump and i guess it worked at first but it still studdering while driving.????

got me stumped on y it would be hesitating.anyone kno y it cld be doin this??

also the trac light stays on is there a way to fix this? the switch turns on and off but on the on position the trac light stays on hmm idk?? maybe someone can help me

thnx

bryan767

iTrader: (6)

did this today.. hopefully it works on the 1jz...

heh.

slappy96

brake light also illuminates with low brake fluid in reservoir
puttering could also be due to bad o2 sensor. Trac illumination accompanies that sometimes.

P Weezy

iTrader: (1)

Can someone answer this!!? IM having the same problem and this has never been answered in this thread. thanks

tk3000

iTrader: (2)

It fixed mine. Try it, and see if it works. Won't hurt!

ashtray

iTrader: (12)

So should this mod help my car from bogging down and dying after high rpm rev? Also..Will this mod affect any of the safc2 settings or AFR readings? Thank you in advance. BTW, im probably not gonna solder it..but rather just intwine them and electrical tape them together nice and tight...will this be okay? Thanks again.

TLDriver

iTrader: (4)

I did it because my car felt like I had 3 stages... LOL low rpms mid and then after 4-5k rpms it would run fine. I just did this and now it feels a little more even.

ashtray

iTrader: (12)

Thanks for that input

Anyone else? Thanks.

turbodremz

iTrader: (18)

you can twist them for now, but I think when you come down again it would be a good idea for us to solder them.

ashtray

iTrader: (12)

sounds good. Also i just decided on a walbro pump...that denso is so expensive for the 2jzgte supra...basically same performance id say from a few charts ive seen.

AlexAgyago

OK theres a lot of info here. Kind of lost. This is my problem and would love a fix. I have a 93 SC300. The car would bog down and would want to stall, I put it in neutral at stop lights and rev the engine to keep it from dieing. Soetimes it would cough and sputter. I replaced the battery and noticed I have a drain.

I put a volt meter on positive terminal and cable and have over 12volts. I removed every fues and relay inside the car and under hood and can't find the drain!????

So I have been disconnecting battery cable when ever I get out of it.

Now car runs great when hot and fires up everytime, till it gets cold. When cold i crank it over and over again sometimes over 30 times and eventually I hear the fuel pump engage and it fires up (sounds like the radio antenna going up) and no problems till it sits for a couple hours and then it won't start. People think I am crazy and tell me to give up that it won't start.

Vincent123

iTrader: (24)

About to do this mod, but i have no soldering skills. Does it have to be soldered or can i just twist the two together and use heatshrink / electrical tape?