'91 Miata won't start after MS3pro install without afm connected
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'91 Miata won't start after MS3pro install without afm connected
On a 1991, the engine is bone stock. To recap what I did, I followed the instructions very deliberately, I removed the ST Sign fuse before even installing the ECU. I wired up the AFR gauge and IAT sensor. I have the vtps sensor but am holding on the install until I get a bracket for it. When I try to start the car it won't start. I reinstall the AFM and it starts. The fuel pump won't run unless the AFM door is open or there's a jumper in the DIAG box. I can't engage the fuel pump on Tunerstudio, it says it's on but I don't hear or feel anything. I know I can just put a jumper in and call it a day but I would prefer to wire the pump to the ECU correctly, I just don't know why the ECU can't run the pump.
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Are you talking specifically about a MS3Pro Plug & Play ECU?
Removing the fuse is typically all that is required for a PNP -- but it sounds like this circuit may not be working on yours -- was it used?
Removing the fuse is typically all that is required for a PNP -- but it sounds like this circuit may not be working on yours -- was it used?
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