I hate that my first post on here is a problem post, and I’m looking forward to sharing both my Miatas with you at some point.
I have a 1993 mk1 Miata 1.6 Eunos Import, which will start and fire perfectly first time, and then die Almost straight away. I’ve read loads of the same problems and lots of people have had lots of different issues that cause this, and I’ve also read and diagnosed it. I’ve Bridged the FP to the GND ports in the Diag box, and the car runs perfectly then like there’s no problem, which led me to believe the AFM and it’s Run signal was at fault. I found a replacement AFM and swapped over the whole lot, and it’s still doing the same, only staying running when I ground the fuel pump.
Could there be a problem with the actual plug or any of the 7 pins inside it? The car has had an immobiliser in the past but this has been bypassed.
Any suggestions or help will be greatly appreciated.