Hi i just recently swapped my 95 sc300 with a Aristo GTE engine, I have not drivin it on the road yet since I swapped. Im having some problems with it and maybe some of you have had the same problems and can help me out.
Current mods are turbo back exhaust, front mount, USDM 550 injectors w/ resistor, safc, and Mines ECU. I changed out the tps today abd idles perfect now, I don't really know if the adjustment of the TPS will make my car run this crappy?. I have the stock plugs that came with the swap (cleaned and gapped). I also still have the stock SC fuel pump in there but with the 12v mod.
Car idles perfect its just once i get on the gas and when it hits about 3000rpm it starts missing and sputtering pretty badly. It is throwing no codes.

 

get these plugs... ngk 2667~BKR7EIX GO NOT GAP THEM, DONT CHECK THE GAP, DONT SCRATCH THE TIPS; they are iridium and they come pre-gaped and all... .. those plugs will solve your problems. you will be amazed! where in bay are are you at? PM me always stoked to find new bay area sc friends!

the aristo ones are too hot and big gap... slap these plugs in there mine did that too and my buddies supra did that... i tried many many plugs and finally found the right combos.. these plugs are good for a while! untill you run moe boost then you wanna go colder..

 

what he said^^^^ colder spark.....also whats your afr looking like at 3000 rom when it starts to crap on you??

 

(cleanshots) I will get some of those plugs today after work to see it that makes a diff. TT fuel pump should be in this week too. Im located in So. San Jose. I think I was talkin to Kevin when you were buying his interior from his widebody ha. He is supposed to come today so I can buy his wideband off him so I can see how its running..

(scviolence) Hopfully when I install the wideband soon I can get a better idea of how the A/F is doing at that point.

thanks

 

still doing crappy...swapped out with a friends ECU and ignitor and seemed to run worse. Hopfully the plugs and TT fuel pump will do something positive

 

either that or your map sensor is ****ed