Recent content by Motorsports-X

  1. M

    NBS Front Brake Swap for OBS Trucks

    hey guys, back in march i bought a full knuckle/rotor/caliper assembly off of a 2003 2wd. I'm just now (finally) getting time to do this. ive basically forgotten the 29 pages of this thread I read. Can you guys confirm that the only other parts I need are the 2000 4wd Hubs, the reamer, and...
  2. M

    JBA or any Long Tube headers

    I need a GOOD set of 1.75 headers that fit. Shops are saying 2200 minimum for 304, 3000 for 321... Anyone know if there is a 1.750" set from JBA or someone that will fit? Or maybe even 1.875 since it does use some nitrous.
  3. M

    way too rich

    Typical forum poster. Number one im not surprised about anything except fuel trims being maxed out at idle... number two I'm telling you there is a mechanical issue I'm trying to work out so i CAN tune it. Didn't realize asking for a couple of specs asked for a smart ass response...
  4. M

    way too rich

    Lol. My bad . Its a 96 k1500. has a built 5.7 engine from a 98 in it and 411 swapped. 4l60 trans.
  5. M

    way too rich

    My truck, at idle, is ******* both the fuel trims. Bank 1 a bit more than bank 2. The engine is built and i expect Some demand for more fuel but not 75% at idle. Removed the bank 1 exhaust pipe after the collector to replace the trans cooler line and the pipe was very white. It looks very...
  6. M

    GOOD long tube headers? (4wd)

    Looking for Stainless headers that are actually high quality and fit well? (vortec engine) Suggestions? Exhaust is stainless but Im not opposed to non stainless headers with a coating. I just want some high quality headers worthy of tig welded stainless exhaust. 600hp with spray.
  7. M

    O2 Sensor failover???

    Correct. 1 for each manifold, and 1 in the y pipe pre cat b1s3 post cat.
  8. M

    O2 Sensor failover???

    downloaded the service manuals.. found the plug. it was shoved up towards the top of the left side of the engine, under another harness. its a 4 blade flat. so thats done.... lol the plug for b2s2 is closer to where the sensor actually is, and the second sensor i bought is sqaure plugged, So...
  9. M

    O2 Sensor failover???

    Yesterday when i put in the vin.. i oddly saw a sensor "3" line in the data stream selector. Thought it was a glitch. But i just noticed thst the 5.0 had a b1s3. This truck had a 5.0 in it originally. I think that's why i cant find the plug. When the ecm was swapped to the 350 ecm it just...
  10. M

    O2 Sensor failover???

    Mine has the 4 in a row upstream. The square ones are down stream. I have all of them working except b2s1. And the only code i have now is for that sensor. Apparently the ecm will not go into closed loop without both sensors. I drove 40 miles today and got no fuel trim at all. Im going to try...
  11. M

    In need of spreadsheet for 96 tahoe to 411 pcm swap

    Lol. That's hillarious. I'll put a pin out together for you guys this week
  12. M

    12200411 PCM swap for 1996 to 2000 GMT400 trucks

    Does anyone know how to get ahold of lextech?
  13. M

    O2 Sensor failover???

    Ok so...first off...id never hack up a truck like this. I was able to find 3 o2 sensor plugs. On the left side of the truck i found a flat 4 wire plug. Bought a flat four wire direct fit o2 senso . When i plug it in i do see B1S1 come alive on my data stream. Unplug it and it's steady 450...
  14. M

    O2 Sensor failover???

    So im trying to get the wiring sorted. after i have everything working i have a 411 waiting for swap and a buddy of mine has hp tuners. But im still having trouble just getting the o2 plugs sorted at this point. Im gonna make a seperate post about it below
  15. M

    O2 Sensor failover???

    Its run with no sensors for 4 years. Very roughly. Built engine and its not happy. Ill have headers and new exhaust in a few weeks. Thats also part of the reason im trying to get the wiring sorted out now.
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