Hello!
I am back with the build status update on the 4AGE 20 valve blacktop installed in the Corolla FX16 GT-S. A new ECU and coil on plug conversion kit are on their way. Meanwhile, I want to check the fueling to make sure the ECU has a good baseline. I pulled out the fuel injectors and mailed them to RC Injection to have the injectors tested, cleaned and tested again. There's no way to find out individual injector performance with the built-in sensors the engine has. The oxygen sensor can only read the average of all 4 injectors.
The test results show that only 1 injector that was close to performing to factory specs. The other 3 had significant flow restrictions and poor spray patterns. After the cleaning, all 4 injectors are performing within 1.5cc/min of each other and have an excellent spray pattern. It is very exciting to discover a problem that was so easy to correct. Injector removal and re-installation was relatively easy and inexpensive. I mounted a camera to see the new improved fuel spray pattern. Watch as the spray is has a nice and even pattern and of course the sound!
The immediate difference I felt was the smoothness of the engine. Idle has almost no shake and the 4AGE pulls strong to redline. Partial throttle input also feels better. I was unable to get a dyno test to verify due to the Covid-19 lock down.If you haven't serviced your injectors in a long time or ever, you should definitely do it. Next up on the 4AGE build is installing the ECU and coil on plug conversion kit.
The Corolla is running better than ever and I'm excited to give the 4AGE a big brain :D
Stay tuned for more updates!
Music Credits:
Laguna - Pocket paradise
Transient - Faded Embrace
tmu - morning breeze
c4 - Night Train
Dany Angelelly - Black Flower