Hello everyone I recently bought an MSPNP2 for a 90-93 miata off marketplace. After plugging it into my friends car (93 turbo project) Cylinders 2 and 4 were getting no fuel. Did the test in tuner studio to test each injector and when we tested 2 and 4 there was nothing but 1 and 3 were

good. Put a test light to the wire coming from the ecu when we tested it and no pulse. Could it be a jumper on the board of the ecu? Not sure what the issue could be since everything else on the ecu works fine. Thanks for the help.

 

I'm in an eerily similar boat.

Can you do me a weird favor and confirm/deny that your MSPNP *works* (can be communicated with) if your IACV is unplugged?