I have a ms1 pnp for an m50nv that I purchased second hand and when tryin to start the car it would lock up. Come to find out injector 4 goes wide open when the mega squirt is powered up. I swapped the ms out for the stock ecu to verify that the wiring harness was not the cause of the issue and when the factory 404 is installed there is no issue. I automatically assumed that it was a bad driver but being ms1 it would only be capable of batch fire correct? Meaning if a driver failed then multiple injector would open would they not?
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Ms1v3 injector sticks open
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Originally posted by nando View Postit sounds like something is wired wrong internal to the MS1 - it only has two injector drivers. perhaps one of the injectors is wired straight to ground.Last edited by Gdb221; 07-16-2013, 09:18 AM.
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Originally posted by whodwho View PostYou will be overloading the driver running all of them on one driver, they are only rated for up to four high imp injectors.
This may help with troubleshooting -http://www.diyautotune.com/tech_articles/megasquirt_injector_driver_troubleshooting.htm
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