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  1. 98k15

    94 tbi 350

    Was cleaning out the truck tonight, found 2 ecms under the seat behind a set of jumper cables. Looked up the number on them. They were both correct for the truck. So I pulled the glovebox to look at the one in it, turns out it was not correct for the truck, swapped them off, runs amazing now...
  2. 98k15

    94 tbi 350

    Is there a test port on the tbi trucks like on the vortec? If it was fuel pump wouldn't it run lean?
  3. 98k15

    94 tbi 350

    Put a map sensor on it, that didn't work either..
  4. 98k15

    94 tbi 350

    Put new 02 in, problem is still there.
  5. 98k15

    94 tbi 350

    Also have code 12 and 45
  6. 98k15

    94 tbi 350

    Have a new 02, haven't had time to put it in, I've checked all the vaccum lines with starting fluid, none acted to have a leak, will get 02 put in and if that doest work try map
  7. 98k15

    94 tbi 350

    I've done cap, rotor, plugs, wires, fuel and air fliters, checked for vacuum leaks, also did the 2 wire coolant temp sensor and fuel pressure regulator, truck runs fine when it's cold but rich when it's warm, which makes it idle rough and miss bad low rpms when warm now, it runs like the ecm...
  8. 98k15

    94 tbi 350

    Did fuel filter, still no luck.
  9. 98k15

    94 tbi 350

    Did plugs, wires, cap and rotor tonight, forgot my line wrenches at work today so I didn't do fuel filter, will do it tomorrow, runs better but still is doing the same thing, the plugs had almost no electrode left, appeared to be original plugs, truck has 219k miles.
  10. 98k15

    94 tbi 350

    Haven't had time to mess with it, bought it saturday, doing to start with plugs wires, cap and rotor, it will also die when you first start it if you don't give it done fuel
  11. 98k15

    94 tbi 350

    Just bought a 94 k3500 srw 350, nv4500 truck, truck revs fine with the clutch in or out of gear but going down the road if you get past half throttle it sputters, doesn't want to pull hills, any ideas?
  12. 98k15

    "Carb" swap question

    When swapping a vortec to a carb is there any wiring that needs to be done for the fuel pump to stay on while running?
  13. 98k15

    What size carb?

    It's not going near 6700 rpms lol, this trucks a 5 speed flatbed truck, it's set up for torque, I use it as a daily but it's hooked to trailers a lot and used to haul feed and hay
  14. 98k15

    What size carb?

    I've got a vortec 350, comp 08-801-8 cam, Promax heads with 185cc intake runners, 2.02 intake valves, 1.60 exhaust, wieand street warrior intake, 1.6 roller rockers, msd street fire intake, I need to know what size carb I need, I have access to a 600 and a 750 but I think the 750 will be too big...
  15. 98k15

    "Carb" swap question

    Okay, thanks, I may have figure out a way with the vortec cable but not sure yet
  16. 98k15

    "Carb" swap question

    Anyone? I decided to go carbed, putting intake on tomorrow, does anyone know how to setup my throttle cable to work with a carb?
  17. 98k15

    Fuel options

    I was looking into putting a carb intake on it and an efi kit like a fast or a Fitech but the fast kits and out of budget so I decided on Fitech but they're on backorder and I don't have the time it wait for one
  18. 98k15

    Fuel options

    I'll look at those spider assemblies and a higher pressure fuel pump won't do anything, your fuel pressure regulator keeps it the same
  19. 98k15

    Fuel options

    I have a vortec 350, I put a comp 08-801-8 cam, valve springs, 1.6 roller rockers and headers on it, when I got it tuned it would lean out after 5000 rpms, injectors wouldn't push enough fuel, I got a set of heads with 185cc intake runners, 2.02 and 1.60 valves and longtubes, what can I do to...
  20. 98k15

    "Carb" swap question

    The cable to open the throttle plate, I have a 5 speed so don't need a kick down cable, I need the throttle cable
  21. 98k15

    "Carb" swap question

    I'm swapping my spider injection for a throttle body efi kit from fitech, only problem is I don't know what to do for my throttle cable, how can I set up my throttle cable? The kit is a direct replacement for a carb so it hooks up just like a carb.
  22. 98k15

    After cam tuning questions

    Got my truck back this weekend, the range sensor for the automatic transmission was still hooked up which was causing the computer to get inputs, that was what was causing it, it's now tuned and runs great, completely new truck
  23. 98k15

    After cam tuning questions

    I dropped it off with my tuner today and talked with him when I did, he said he believes it's the security system detecting a false start and retarding the timing, he is going to put his wide band on it and check everything out,and mess with it all day tomorrow
  24. 98k15

    After cam tuning questions

    Full tune up was done when cam was installed
  25. 98k15

    After cam tuning questions

    I just talked to kc Maxx, right now $350 is put of the question, my 08 needed work so no money for that, if you have any suggestions or ideas of why the trucks doing this let me know because I'm getting the tune for free from the local guy but if he can't get it done I'll keep driving my 08 till...
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