Mr.Gs_GTE

Hey guys, I am dropping a 1UZfe in a 1994 Toyota pickup and I need to figure out my exhaust. I don't want to run two cats but I am worried about the check engine light. Is there a way to make this work with no CEL by possibly installing 4 of the o2 sensors?



Prepping the engine bay for paint





Test fit





Back from the machine shop

Ramblerman

I have been told of a way to make o2 senors function with out being in cats. Take your cat test tube pipes and install o2 nipples onto pipes,then ahead of 02 sensor mount appx 1/4" cut a slice in tube and install a shield to protect sensor from full force of exhaust gas flow, supposedly this allows 02 sensor to function as if were installed in cat. This of course will require a bit of welding. Tig would be best. It may be worth a try.

OUChase

I'm about to install these on my 1995 sc400 with no cats. Will report back if I get no cel. From what I've read, the pre-obd2 models (1995 and older) won't throw a check engine light for catalytic converter due to the oxygen sensor but gas mileage may be affected. I'll be able to tell you definitely this week though

Mr.Gs_GTE

That's guys. Please let me know if it works.

BlackFrmBK

I'm new here and looking to buy a trany for my sc 400 92 w/ od

Mr.Gs_GTE

you should go post this in the classifieds section. https://www.clublexus.com/forums/sc4...lassifieds-36/

SCFactory

iTrader: (2)

Motor looks gorgeous, I had an SC400 with hollowed out/aftermarket straight pipes and didnt get a check engine. It was 93 as long as the sensors are their and plugged in should be ok

Mr.Gs_GTE

Thanks man, it's been a long time coming getting things together. The engine is out of a 93 sc400. I was told that by another guy but he was guessing, the info wasn't solid. I just don't wanna do a complete setup and run into the issue of the light later on.

yauny

I have hallowed cats and all 4 sensors and I still get a check engine lite there really isnt a way around it that I kno of.