Recent content by Zephyr

  1. Zephyr

    Injection Pump Questions

    Cant Write, The taxes definitely DON'T go to pay for better roads!! I do love the western slope! What would you do if Placerville's population skyrocketed to 364? My kids and in-laws are on the front range though, and so I will just continue to live with the wackos for a while. I sure enjoy the...
  2. Zephyr

    Injection Pump Questions

    I haven't been able to get a tech to actually explain it, but my understanding is this. They run at 40mph, 50mph and 60mph and then brake the dyno until rpm's fall, measuring smoke at that point. It is meant to stimulate pulling under load. I believe all those numbers are performed in top gear...
  3. Zephyr

    Injection Pump Questions

    Thanks for the replies. Unfortunately with my limited knowledge, I know more than 95% of the local shops about these engines. Few of them have ANY clue. The previous pump and injectors were supplied by a reputable supplier on this forum. I timed the pump at install personally 9.2BTDC. I should...
  4. Zephyr

    Injection Pump Questions

    Sorry about the extensive vehicle history to explain my question. My area of Colorado requires lug-down opacity testing of the exhaust prior to vehicle licensing. My vehicle is driven approximately 5000 miles yearly and has passed emissions with 20 to 25% opacity over the last few years. 35% is...
  5. Zephyr

    Failed Emissions

    Date of manufacture is 11/93. Colorado collector's vehicles must be 32 years old or 1975 or older according to the website. Apparently politicians can't do simple math because 2022 minus 1975 is 47. Either way, it's not quite there. It was good to see my 28 year old truck pass emissions with...
  6. Zephyr

    Failed Emissions

    Thanks everyone for the assistance! I called the emission station/shop that saw it yesterday. After explaining to them the lack of on-board computer and of any useful function of this idiot light, they decided to contact the state emission people who agreed that a tail pipe emission was adequate...
  7. Zephyr

    Failed Emissions

    I may not be a great mechanic but I know running out of oil is bad, LOL. I tried your recommendation of unplugging the oil pressure sender. Still no CEL or power to the light socket. I assume something faulty in the in-dash gauge connection with the idiot light (check engine light). At this...
  8. Zephyr

    Failed Emissions

    Yes I am 100% sure it is an IDI. I am the original owner and have done almost all the work on it since birth. It would make sense that the instrument panel might have had a non-functioning light (even with a bulb present) from manufacture since the same panel would be used in gassers and the...
  9. Zephyr

    Failed Emissions

    So can I clarify the consensus? No computer, so no OBD? Check engine light only for low oil pressure, therefore if my my oil pressure is normal, there would be some sort of failure in the pressure sender or wiring between there and the pseudo check engine light? Is that light's only function...
  10. Zephyr

    Failed Emissions

    Sorry for my ignorance on most things electrical. The owner's manual talks about an EEC. Does this exist on these trucks?
  11. Zephyr

    Failed Emissions

    I live in one of those areas that requires emission testing. Today my 1994 IDI failed because the "check engine" light won't light. Exhaust opacity is low and the truck seems to run fine. I actually don't remember having seen a "check engine" light on this truck ever light up, but Colorado...
  12. Zephyr

    Electrical Gremlin

    Thanks all for the help! So the guy who wired the recent trailer pigtail also spliced in the license plate light wiring so it was backfeeding through the rear running lights to energize the trailer light relay. The idiot who wired the rear lights....me. Finally solved!
  13. Zephyr

    Electrical Gremlin

    Update: As mentioned, the headlight switch is new. I replaced the switch pigtail as there was some plastic scalding between a few terminals. Perhaps associated with 25 years of high amperage current? I changed out the trailer circuit relay. Still has the same symptoms. There is no chance a...
  14. Zephyr

    Electrical Gremlin

    I am struggling with an electrical problem on my 1994 F250 IDI. Long story short, when I turn on the running lights, I can't turn them off without disconnecting the battery. After disconnecting the battery (main headlight switch off), I can reconnect the battery and no running lights until the...
  15. Zephyr

    Cleaning out some spare IDI parts

    PM sent
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