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  1. M

    Digital Tuning 1995 Mustang Gt Drivabilty Issues And Eec Codes 543 177

    Well problem has been figured out ! So I hunkered down last night with my DMM in hand and went to it I pretty much already knew gut feeling but wanted to confirm . So anyways after install new CCRM cause old one was out of a 3.8 v6 and not right, so I check voltage again at Dk Grn/Yellow fuel...
  2. M

    Digital Tuning 1995 Mustang Gt Drivabilty Issues And Eec Codes 543 177

    Nope no way it is spun I am a ASE cert tech I can figure that out . Did further diag ccrm output fuel pump 9.80 vlts input 12.00 volt I am sure this is my 543 code . Other 177 is from kid fing up left o2 sensor wiring and new o2 is now junk . The timing thing I am going to check by installing...
  3. M

    Digital Tuning 1995 Mustang Gt Drivabilty Issues And Eec Codes 543 177

    i wish it was as simple as the harmonic balancer that is brand new as well. 177 left 02 code is where kid I got car from had wiring to o2 sensor spliced and wrong had volts for heater going ecm signal wire possible spiked ecm and why its giving me all these gremlins . I hate hacks btw
  4. M

    Digital Tuning 1995 Mustang Gt Drivabilty Issues And Eec Codes 543 177

    Hiya all in the Mustang world not new to them put new to the sn95 platform have owned several foxs. So anyways I obtained 95 gt in a trade few months back and been dealing with dudes hacked ass work. So at this point I am chasing my tail I am 99% sure ccrm is bad seeing I have no volt output to...