Help - Search - Members - Calendar
Full Version: 3sgte cranks but will not start
6G Celicas Forums > 6th Generation Celica > Forced Induction
Joebo003
I swapped in a 3sgte in a 94 celica gt all the wiring done correctly (i hope) and now it cranks but wont start i hae no spark and my injectors r not firing any help would greatly be appreciated ...all lights work on dash so i dont think its the ecu any help would reallly help thanks
PhoenixTech
Have you checked your main EFI fuse to make sure it's not blown? Do you have power at your coil and injectors? Also, how did you do your harness. Did you extend it to go through the firewall in the correct location, or did you cut a new hole?
Joebo003
I replaced the efi fuse...... i cut a hole in the firewall and i added the wires from the ea1 plug to the engine harness b cause i did not have the fuse box that mounts to the rad but i jumped the fuel pump relay and im definately getting fuel
PhoenixTech
Have you checked to see if you're getting power at your injectors and your coil?
Joebo003
No i havent done that yet ill try that and see what happens
Joebo003
I got it started but it wont start with the 3sgte ecu i got it started with the 5sfe ecu do i need to repin the 3sgte ecu im using the 3sgte wiring harness i dont think u should have to repin the ecu cause it came from the motor or is it possible i got a bad ecu
Smaay
its possible that you got a bad ECU, but im thinking that you need to re-pin for the 3S ECU. i know the injectors are in the same location, but sensors like G1 might be different. you not having any spark is telling me that the crank pos sensor in the distributor is not reading right.
anonymous
It sounds like you may not be getting a cylinder position signal (cam or crank position) to the ecu. Verify that you are getting 12v to the coil and to the injectors when the key is on. If so I would suspect either a fried ecu or a cylinder position signal issue.

It is odd that it will start up on the 5sfe ecu. Look at the pinouts for both ecus and see the locations of the g and ne pins. This may hint to your issue.
Joebo003
Do u have the write up for the ecu wiring i have no idea what goes where the mechanical part of the swap is easy but the wiring is a pain in the a$$
BuiltNotBought
Bump. Have same issue.
bsamps4
Hopefully this topic will help you.

http://www.6gc.net/forums/index.php?showtopic=82196
Neon90424


here you go sir
Joebo003
I had a someone do my wiring and everything seems ok but it still wont kick over i think i need an ecu does anyone know how to test to see if the ecu is bad or does anyone have an extra 1 laying around that they want to get rid of if so lmk leave a message with ur # im tryin to get this car on the road
team_omega
What Gen 3sgte did you swap into your car?
Soulend
are you sure your timing is correct? that'll so it too...
Joebo003
Sorry havent been on here much its a 3rd gen and the problem is solved the place i got my motor from gave me the wrong ecu i ordered a new ecu and it fired right up im starting to clean everything up and almost ready to drive it
Smaay
kick ass! i knew it was the ECU
Joebo003
Car now runs and drives but its throwing a code 54 i have a front mount setup and i put a pin in the coolant sensor amd the light didnt go off i tried reading up on how to get it out but there are no real answers i need to know exactly what to do to get rid of this light any help would be appreciated
Neon90424
I thought you just had to bridge the conectors..
Smaay
do this at the ECU connectors. This worked on my car

This is a "lo-fi" version of our main content. To view the full version with more information, formatting and images, please click here.
Invision Power Board © 2001-2018 Invision Power Services, Inc.