I wasn't 100% sure where to post this but figure this is the most appropriate area.
1.6L 1999 engine (JDM import)
Using all the 99-00 cam and crank sensors, trigger wheel
280/270deg 10.5/9.5mm intake/exhaust camshafts
DIYPNP ECU and using the "Miata 99-00" ignition settings
Engine is running smoothly.
From what I understand, the use of stock trigger wheel means the base timing is set at 10BTDC and I shouldn't be using Tunerstudio's Trigger Wizard to offset anything. And this was the case when we first got the engine running, it was exactly on 10BTDC and we didn't need to offset anything.
But when I lock the timing at 10BTDC and check with a timing light, it indicates 15BTDC.
I have tried different timing lights, tried new cam and crank sensors, swapped in a different crank pulley and trigger wheel. And the problem persists.
I followed these instructions:
How-To: Setup Base Timing
And it does specifically say:
"Note: This How-To applies to most wheel decoders, but it does not apply to Toothed Wheel mode. This is because no offset should be necessary in Toothed Wheel mode. If your actual timing in Toothed Wheel is not the same as your commanded timing, there is a problem with your trigger wheel settings, most likely with your #1 tooth angle."
Does that apply to the 99-00 trigger wheel?