Its a 1uz from a 1993 sc400. Anyone know any possible reasons why it stalls immediately? Does this startup sound familiar to any of you? Ecu has power and i only hooked up necessary wires for the engine to start and run. Havent checked ignitors, injectors, coils for power. Im going to check cam and crank sensors when i get home today.

 

May be fueling, ISC or ignitors. Cheapest one first. Try to clean the ISC and ensure your fuel pump is getting constant power and delivering fuel. You can turn it on and pump the gas and force it to stay on, at a certain point and time it'll stay on, but you'll have to watch your rpms, if it's connected, sometimes it'll stay on after a few minutes, sometimes it doesn't until is warmed up. Additionally, the cold injector may cause some issue, but I don't remember all the intricacies of it at this time. Cartunenz on youtube would be a good source of information here is a link. Lastly double check ignitors, swap them to see if there any changes.

 

Ok nvm guys i found why i couldnt keep it running lol. I remade some harnesses on my engine and a wire crimp wasnt even crimping a wire going to my coil. I noticed i wasnt getting any voltage there so thats how i ended up checking my wiring.

i was able to get my engine firing woohoo🥳

 

Haha, good deal, glad you got it fixed up!!