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DISCUSSION => Electrical => Topic started by: m42240z on April 30, 2016, 09:43:06 PM

Title: minimum wiring to run e36 m42 with 990 dme
Post by: m42240z on April 30, 2016, 09:43:06 PM

i have an m42 in my datsun and started the wiring. i have 12v from ign to dme (via relay) through the x20 main harness. grouns are secured and main/fuel pump relays are getting voltage to pin 30 but fuel pump will not prime when ignition is switched on. any ideas?

Title: Re: minimum wiring to run e36 m42 with 990 dme
Post by: Delta on May 03, 2016, 03:49:30 PM

In the e30 the fuel pump does not prime until the motor is cranking. If you have it wired the same way then it will not prime with the ignition on.