What kind of firmware does a Mazda Miata use?
This documentation is for using the MS1/Extra firmware version 029v or later, MS2/Extra 3.3.1 or later, and MS3 1.2.4 and later. Plug and Play Solution available here. Application: 1990-1997 Mazda Miata, or later models by swapping in the 90-97 CAS There are two ‘sets’ or ‘rings’ of holes in the optical CAS.
What kind of resistor do I need for Mazda Miata?
Install a 470 ohm 1/4w resistor between the right side (non-band) end of D1 and the left leg (banded end) of D9. You’ll start with an MS1 V3.57 set up for Hall / opto triggering. This means you’ll have JP1 in the 2-3 position and J1 in the 1-2 position.
Where does the spark output go on a Mazda Miata?
The top resistor goes to IGN and the bottom resistor goes to IAC2B.When wiring up your ECU later: Spark Output A will come out on pin36, and Spark Output B will come out on pin31. NOTE– If you’re modding up an MS-I PCBv2.2 ECU you can use the documentation at this link to use your stock ignitors.
Where does the relay wire go on a Miata?
If you’re using a relay board: Pin 24 goes through to position 15, Tach/Ignition for the CKP/Primary Tach Input. Pin 25 goes through to position 7, S1 for the CMP/Secondary Tach Input. You’ll need to make sure your relay cable has this wire in place, if so then this will work fine.
Why are the ignition wires on my Miata not working?
Common Problem! The factory ignition wires on the Miata only seem to last between 30,000 and 50,000 miles. If you are experiencing misfiring and hesitation and you haven’t changed your wires, this is most likely the cause. Change the wires! In case you forget which plugs is which, refer to the firing order diagram below.
What should the gap be between spark plugs on a Miata?
As spark plugs wear, the gap between the electrodes tends to get a bit wider. The standard gap on the Miata’s spark plug should be 1mm. A wider gap may result in misfiring due to the voltage not being quite high enough to cause a spark across the electrodes.
How long do ignition plugs last on a Miata?
OEM plugs usually are somewhere in the middle. Common Problem! The factory ignition wires on the Miata only seem to last between 30,000 and 50,000 miles. If you are experiencing misfiring and hesitation and you haven’t changed your wires, this is most likely the cause. Change the wires!
What’s the standard idle speed for a Miata?
Factory spec for the Miata specifies standard timing as 10� before top dead center (10� BTDC) �1� at idle speed (850 rpm). If your timing is advanced more than this, you may experience pinging under some conditions.