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  1. O

    Another TBI running rich

    I've scanned it many, many times. Back a few pages are logs....if you dare. :)
  2. O

    Another TBI running rich

    So.....check voltage drop on the power wire to the CTS?
  3. O

    Another TBI running rich

    No, and I am waiting for a little bit more cooperative weather. :)
  4. O

    Another TBI running rich

    Raising the idle with the screw raises the IAC number. Lowest I can get is 45 unless I start adjusting the TPS. I tried again. I can get to 40 when the screw is not touching the throttle plate lever. I screw it in and it goes to 35. If I go any further, it goes back to 40. I have the TPS...
  5. O

    Another TBI running rich

    Wont go lower. I could do the tps but then I would probably down to .10-.15v Should I be doing this with it unplugged, like I was going to reset it or just go out and do it, which is what I did. Stupid question....how could I tell I was at 15 if I unplugged it. LOL
  6. O

    Another TBI running rich

    I cant get the IAC lower than about 60
  7. O

    Another TBI running rich

    The temp out side was such that it wouldnt even start unless I unplugged the timing wire. I unplugged EGR, MAP, Charcoal filter, EGR....same problem. When its doing its thing, standing on the bumper, I hear a clicking, as in a spark plug wire grounding out, not as loud though. I sprayed carb...
  8. O

    Another TBI running rich

    Temperature isnt doing this [I dont believe]. Its all over in less than 2 mins from cold start. I think its only 1 transition point. I would edit that one fuel table leaner. I dont know though, I'm a carb guy. I'd open the choke sooner. ;) I'm going to add a ground today and try it. I'll...
  9. O

    Another TBI running rich

    I have removed and cleaned then 5 times. I did not cut the ends off because everything ohm'd out ok. The ground is not on the thermostat housing. Guess I can replace them for giggles.
  10. O

    Another TBI running rich

    You're connected to the internet, you've forfeited everything, dont blame Google. Open
  11. O

    Another TBI running rich

    https://docs.google.com/spreadsheets/d/1-ZuNLTi5wAIa6wHoWYgAKCl0L-tR7CCnhOxiydSjjJw/edit?usp=sharing
  12. O

    Another TBI running rich

    I forget now which is which but there is an o2 sensor you don't want to use. Maybe it's the Bosch. Either way, I changed mine and it didn't matter. If I remember right, unplugging this timing light eliminates my problem too.
  13. O

    Another TBI running rich

    It all started when I put the new engine in. I've been doing this for 40 years so I am aware of paying attention to details on swaps.
  14. O

    Another TBI running rich

    Well, I guarantee you this is cookie cutter parts, nothing great at all. If I could get in an edit the fuel tables I bet that would solve it but I've never been involved in that so I am pretty much clueless.
  15. O

    Another TBI running rich

    Another thought; what if this long block was bored .030 over. Would that matter? I don't know that it is but someone asked me today. I would think it would lean out then
  16. O

    Another TBI running rich

    She took the truck from me for a couple days. I did however sneak a quick, cold start log. Still pretty much the same. I did not touch the throttle at all. I went inside while it was logging but it ended up timing out after a bit...
  17. O

    Another TBI running rich

    That would be with the IAC fully extended and unplugged? TBI has been rebuilt, including regulator. Again, its only for 45 seconds so I feel that would be a constant issue.
  18. O

    Another TBI running rich

    The latest log, the engine was a little warm, 85 or so I think it said. I was rotating the TPS itself.
  19. O

    Another TBI running rich

    I'm good with electrical but not GM stuff. Now that you explained that, I'm really good. I'll take a peek inside the dist too. If it was easy enough to run another wire to test, I'd be game for that more that I would be chasing wires. If I get the pinout read, I can probably ohm things out.
  20. O

    Another TBI running rich

    There is no tach. I have tried multiple distributors. With that said, if you hadnt read the whole thread, which I dont blame you. This happens like clock work, only for the time period shown. It doesnt happen any other time. Looking at the logs, like you pointed out, the rpms are erratic...
  21. O

    Another TBI running rich

    It is surging but not 2500. I posted this video before, but this is what its doing...although this is an older video, it hasnt changed. :)
  22. O

    Another TBI running rich

    I just went out, started it. It started flubbering right when I started it. Here is the log: https://docs.google.com/spreadsheets/d/1kp_xZu8w0LorG03m83NQmjpjbYErETyX_shdKMVkeD0/edit?usp=sharing Around row #230 it started to clear itself up
  23. O

    Another TBI running rich

    I'll log for a few minutes tomorrow morning. Stock long block. Already talked to builder to see if they did something different, telling him of my woes. He said its all stock. Timing is at 0. TPS is at .28v instead of what it should be. No idea why but it seems to run better this way....go...
  24. O

    Another TBI running rich

    OEM manifold, check. 195 tstat, check. The truck was warm for the last log. I'll log it again tomorrow. It did do they same stumble today, in spite of what I did yesterday. CCP? I'll check canister. So I need to get a regulator to lower pressure. No exhaust leaks, no headers. Again...
  25. O

    Another TBI running rich

    Heres a new log, as I was playing with TPS as well: https://docs.google.com/spreadsheets/d/1XrVhV-QauLr0a0VwygWLf9Pg7Ke-6KWjGcoz_q7-MHo/edit?usp=sharing

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