Few Questions about 1JZ

**53TUP** · 04-10-2006, 03:53 PM

Hey guys, just got a few questions.

First being is my 02 sensor is old and worn out its been like this since i have had the conversion done. My question is where can i get a new 02 sensor or better condition one? As global, bursons and all them have no product listings for the 02 sensors on 1j's.

Second question is i have done a single turbo conversion on my 1j. Its a t60-1, just got fuel pump, fuel reg and safc.

Now since day 1 of getting the covnersion done in a 180sx i have had a problem with what feels like a varily decent drop off of torque which happens between 4000-4600. For example third gear going about 60kmph i will put my foot down car will pull decent till 4000 then it will feel like it doesn't gain any power/torque then after 4600 it pulls good then once it gets to 5000 it hauls. Now this problem i had even before i stuck the single turbo on and safc.

Anyone ever had a problem like this or now hot to fix it cause its kinda annoying having to wait an extra 500rpm for the car to get going

.

thanks for the help.

**chris davey** · 05-10-2006, 12:48 PM

1. Toyota will sell the o2 sensor. No idea what part number though. You could get a generic one to work I suppose. It would have to have the same amount of wires and the same fitting.

2. Sounds like something that would need to be picked up on the dyno. It sounds like it is load dependent not exactly boost dependent as the new turbo would most likely have less boost than the stockers at those revs.

What sort of fuel are you using?

THinking it could be the knock sensors pulling timing.

Do a diagnostics check if you can to check for any codes.

**53TUP** · 05-10-2006, 03:39 PM

how do i go about getting this fault codes and checking if it is retarding the timing down low? i have a feeling since day 1 that my knock sensors have been screwed but i would like to know this for sure before i go pulling the sensors out.