Hi guys!

Just wanna share my engine issue. Sumisinok sya during idle. Very prominent ito pag may ac (especially pag nagsswitch na ung ac compressor). The weird thing is if i reset the ecu, it goes back to run normal again. Walang issue until after 100 kms... tska palang babalik ung sinok.

Here's what ive done so far:

1. Changed iscv
2. Changed O2 sensor
3. Changed distrubutor oil seal (although may tagas lately)
4. Changed ac compressor
5. Changed spark plugs

Still a puzzle for me. Hope u guys can help out. Isang suspect ko rin is maybe a dirty fuel injector.

Corolla model po with 4age blacktop engine.

Thanks in advance!