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Thread: do i have a bad computer?

  1. #1
    New Member
    Join Date
    Sep 2009

    Default do i have a bad computer?

    i installed a battery disconnect last thursday.on friday i go to start my car and
    nothing. i checked the wiring on the painless wiring remote disconnect to find
    i must have hooked it up backwards,instead of being closed and then when i throw the switch open it was backwards and it was drawing power to stay closed killing the battery.this weekend i put a new battery in it and took out the switch. i go to start it
    and it runs for two or three seconds fine then it wants to slowly die. its getting
    plenty of fuel because i smell it. ive tryied to do a full reflash to no eval.
    i also tryied a hard reboot nothing. im so lost.the coils are good checked em
    checked the ect,iat,tps,iac,map, all seem good

  2. #2
    New Member
    Join Date
    Sep 2009


    oh ya its a roadrunner

  3. #3


    Hi Chris,

    I'm not sure if this is PCM/Roadrunner related, but if it is, I'd certainly be happy to have a look.

    Does the PCM communicate with the EFI Live FlashScan cable? Are you able to establish connection via OBD2?

    Feel free to follow up with me offline or give me a call at 225-341-3547 if you need help troubleshooting.


  4. #4
    Lifetime Member mr.prick's Avatar
    Join Date
    Nov 2006


    Did you change anything in the tune?
    512k RoadRunner Firmware 12.14R
    FlashScan V2 Bootblock V2.07.04 Firmware V2.07.22 EFILive V7.5.7 (Build 191) V8.2.1 (Build 181)
    LC-1 WBO2


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