Recent content by troyfolley

  1. troyfolley

    SOLVED! 1987 350 TBI Timing advance issues

    Problem resolved! Changed back to old distributor and it cranked right up and advanced! Since we were losing the 5v after start up we assumed the ECM was losing the rpm signal so we thought we could have a bad pick up coil that was losing the rpm signal to the ECM. I now get a constant 5v to the...
  2. troyfolley

    SOLVED! 1987 350 TBI Timing advance issues

    Ok men! I have added a heavy braided ground wire from driver side head to firewall. No change. Found 2 vaccum lines that were crossed. Idled down to 600 rpm. Set base timing with bypass disconnected. Timing still will not advance once connected. No 5v signal from ECM. I found another wire that...
  3. troyfolley

    SOLVED! 1987 350 TBI Timing advance issues

    Guys guys... I'll move that ground, check all grounds and add grounds to be safe. Rest assured. I joined this site because I have always gotten good info from here and wanted advice. I was merely stirring up conversation and looking for feedback or details on how the wire in the block through...
  4. troyfolley

    SOLVED! 1987 350 TBI Timing advance issues

    Not sure I follow the post... I will try it and I hope you are right. That would be an easy fix. Stay tuned!
  5. troyfolley

    SOLVED! 1987 350 TBI Timing advance issues

    I have been busy with work lately and haven't had time to work on the 87. My nephew is growing anxious as the start if his junior year is approaching. I remember having that same feeling when my dad and I were getting my 66 chevy stepside going. I would sit in it and just hold the wheel thinking...
  6. troyfolley

    SOLVED! 1987 350 TBI Timing advance issues

    Yes that is connected. There are 2 grounds from the harness connected there actually.
  7. troyfolley

    SOLVED! 1987 350 TBI Timing advance issues

    Grounds are as follows. Core support to battery Battery to alternator bracket Bell hosing to firewall I will check again for vaccum leaks at TBI. Previously I checked just hoses Thanks all. I will let you know what we find
  8. troyfolley

    SOLVED! 1987 350 TBI Timing advance issues

    I tested the tan/blk but no voltage. Probably because idle is at 2000rpm. I will check the wire and connector again. What rpm should idle be to set base timing? How can I get the idle down. I have always been told not to puncture the seal and just idle screw on TBI.
  9. troyfolley

    SOLVED! 1987 350 TBI Timing advance issues

    Yes I have 42 and 43 code stored.
  10. troyfolley

    SOLVED! 1987 350 TBI Timing advance issues

    Ok fellas. I appreciate all the advice. I combed through the vaccum lines and confident those are good. Reset the IAC by jumping 1-2 terminals on OBD 1 and turn key to on. Is that the correct way? I did plug off EGR and idle changed a little. Also took ICM to Autozone for them to test. I was...
  11. troyfolley

    SOLVED! 1987 350 TBI Timing advance issues

    Ok. Thanks fellas. The issue was bad connectors at the coil to dist. $35 each! Engine surges at idle (2000rpm) a little but settles down after warm up. Still cannot rev engine without stalling/missing. Where do I start?
  12. troyfolley

    SOLVED! 1987 350 TBI Timing advance issues

    We checked all the fuses. None were blown. I will try checking the injectors now. But why no spark? They both failed same time. I pulled a ECM out of an 86 with EFI but nothing changed. 86 was in pieces and has been a parts Truck for a while so ECM may not be good either.
  13. troyfolley

    SOLVED! 1987 350 TBI Timing advance issues

    I have a 87 Chevy R1500 w/ 350 TBI. Truck sat for about 7 yrs and am getting it road ready for my nephew. Installed stock rebuilt engine a few weeks ago. New MAP, EGR, O2, TPS, ESC, distributor and coil. Disconnected spark advance and started up. Got timing roughly set around 0. Plugged the...
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