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I'm not a 1jz whiz, but... stock 1jz with ct12? by stock you mean stock fuel system as well? 500whp+? you gonna run out of fuel/air and spit your ct12 out the back way before that. You sir is crazy, or just plain ignorant. I maxed out my 440's with a T61 and I'm not even close to 500.

You can definitely do it with a T61. get ~.70AR if you can, works pretty darn good. 15psi on twins and 15psi on '61/57 trim is a big difference. more airflow, etc.

Check for codes like other people have said http://www.cygnusx1.net/Supra/TechTips/engine_error_codes.aspx What kinda pump? 12v mod?

Got some updates on the situation. Went out and got a new O2 sensor as well as CTS, plugged both in, and ran the car in the garage. Cold started like it should, went up to ~1400 rpm, and than gradually went down to ~790-800, so that thing was definitely bad. checked for codes, and got nothing...

It does when I rev it up from under the hood. can't really see the gauge while driving thu. I'll read those links you've posted, thanks

I've got the "new" MAP sensor this morning, put it in the car, and decided to check the coil packs before I start it.. well, they turned out to be cracked, as usual, around the corners, for the most part. Had to do the old nail polish trick, which seems to be working so far, runs way smoother...

I'm gonna go check that right now. It stalls and dies if I unplug the Vac line on MAP thu. EDIT: I set SAFC to run pressure (MAP) and unplugged the MAP, it just ran crappier, rpm dropped down to around 590-600. wasn't rich thu, same AFR. when I DC the VAC line on MAP, it dies thu. Oh yeah...

RacerXJ220, It runs lean on idle... stays lean all the way to around 15psi at ~13.7-13.8. Are there any step by step instructions for SAFC 2 on 1jz, as far as settings go that is..?

I've check the fuel pump, its practically brand new. FP is fine, I've checked that too, it holds just fine. Yeah, I just done a search, and code 31 is MAP... stupid me, should have searched before asking. I'm gonna get a used MAP tomorrow and try it on. 2jz map is the same as 1jz, correct...

Got a problem with my 1jz here. I did a single swap a while ago, and everything was fine, put a wideband in, adjusted the AFR and it was pretty good (around 10.5-10.9 WOT), car ran fine, except it would cut out/sputter at WOT around 5K. Anyway, about 2 weeks ago, it started to go lean, I'm...

Too lean? 11.5 ~ 12.4 is pretty damn good for WOT. it's not really lean until you start getting into low-mid 13's+

I guess thats what I'm gonna have to do later on next weekend or so. I removed the CDC like said before, everything was working fine with the hazard lights/horn fuse out, till I unplugged the horn itself, and put the fuse back in to make may haz lights work.... come back after lunch, and the...

here you go man, save this link aswell, lots of good info. http://www.cygnusx1.net/Supra/TechTips/engine_error_codes.aspx hows the weather over in Benning? 'bout to TDY there in a bit :(

12 is not lean at all, or am I wrong?

Any ideas? tips?

I've looked around the forum, but failed to find anything related to the problem/s I have.. About a week ago, my factory alarm went off for no apparent reason. I opened the door, started the car, it kept on going off, so I was about to dc the battery when it stopped... pretty weird. around the...

so those hoses coming off the "heater control valve" need to be connected to the metal/aluminum line that runs underneath the mani? Thats what I thought was wrong, wish I knew that before thu lol. Ill try fixing that up today, hopefully it works.

Ok, so I did my single swap on 1JZ mk3. now that I actually get to drive it around 5 AM every morning I realized that there is no heater no more... I'm pretty sure its an easy fix, most likely some of the water hoses from the stock twins are not hooked up where they should/plugged up. If anyone...