1ZZ-FE Ignition Coil Specs
The ignition coils for the Toyota 1ZZ-FE are discontinued, but Denso still makes them under their own internal part number.
| Toyota | 90919-02238 |
| Denso | 673-1305 |
The Denso branded coil packs are still readily available despite the Toyota branded ones being discontinued.
Below are the unofficial dwell times for these ignition coils. The forum source for these coils can be found here, I have been using these dwell times in my stock 4A-GE 20V Blacktop with no issues to date. I'll add an update here if I ever run into an unexpected or untimely coil pack failure.
| Voltage (V) | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
| Dwell Time (ms) | 6.3 | 5.3 | 4.4 | 3.8 | 3.2 | 2.7 | 2.4 | 2.2 |
These are not official dwell times, use these at your own risk.