Replacement NB Coilpack

omega36 · Postby **omega36** » Sat Dec 21, 2013 4:21 pm

Hi all,

I purchased a replacement 3-wire coil pack for a 1998 NB MX5. Problem I'm seeing is that the stock coil pack cylinder order is 4-1-3-2, however, on the replacement coil pack it's 3-2-1-4 --- is this going to be a problem? Or am I able to trust that the replacement is wired in such a way that the firing order is safe?

Thanks!

omega36 · Postby **omega36** » Sat Dec 21, 2013 4:26 pm

The replacement coilpack I ordered is here: http://www.ebay.com.au/itm/141086167277

It says NB8a, but I am concerned about the order...

Mr Morlock · Postby **Mr Morlock** » Sat Dec 21, 2013 4:49 pm

Its says in the background MX5 Mania- why not ask them- they should certainly know.

omega36 · Postby **omega36** » Sat Dec 21, 2013 5:15 pm

I would, but I imagine they are closed today, and perhaps for the Christmas shutdown period too... I'm going overseas on Tuesday and am hoping to have this replaced before then :/

omega36 · Postby **omega36** » Sat Dec 21, 2013 5:22 pm

Found this from here https://groups.google.com/forum/#!topic ... AqSd-H5MhM :

Each sparkplug in a Miata sparks twice per cycle. This means you can switch
the wires of two cooperative cylinders (1+4 and 2+3 as I believe). However,
you are _NOT_ changing the order. It stays 1342. Switching 1 and 4 on a 1342
will not result in a 2341 ignition; it stays 1342.