Recent content by Phillip Buessing

  1. Phillip Buessing

    speedometer problems

    Does the transmission shift correctly? Any codes? The PCM gets its speed signal from the speed sensor on the rear housing(output shaft) of the transmission(2wd) or t-case(4wd).The pcm then sends a signal to the speedometer. If you had a speed sensor bad the transmission would not shift correctly.
  2. Phillip Buessing

    still a dog...

    Second what SAATR says about the MAF, clean it, especially if you run an oiled air filter like a K&N. You can actually just unplug it and take it for a spin and see if it runs better. Check your cmp retard with a scan tool, make sure it’s around 0*
  3. Phillip Buessing

    Fuel related issue, please chime in

    You said the pump assembly was rebuilt with a parts kit? If so I would suspect it blew the hose off between the pump and module top, especially if you can hear gas flowing in the tank.
  4. Phillip Buessing

    Falls flat under acceleration

    Was this issue present before you installed the “new” Tbi unit? Any chance your exhaust is restricted?
  5. Phillip Buessing

    Falls flat under acceleration

    9-13psi, preferably on the higher end
  6. Phillip Buessing

    95 350 Doesn't Like Low Speed

    Sounds like an egr issue, you have the light throttle romp, romp? Just try unhooking the egr, plugging the vacuum line and capping the vacuum port on the valve and see if the issue changes or quits.
  7. Phillip Buessing

    Need help on rebuilding my l31 into a 383

    I’m not sure what your goals are with the burb but the LT4 hotcam is going to make more power in the mid to upper RPM ranges, not saying it’s “bad” but you will be reving it more to get Into the torque curve. If you do go with the hot cam a mild stall converter would be benificial. I know...
  8. Phillip Buessing

    NEED HELP !!! Idling problem driving me crazy!!

    The 96 and up vortec engines did not have a pickup coil in the distributor like the TBI pickups did. Spark timing and control is based off of the crankshaft position sensor. Have you tried unplugging the MAF sensor and starting/driving it?
  9. Phillip Buessing

    Good mild cam for 98 Chevy K1500

    I was going to say that GM p/n 12551142 would be a good choice as well, but it seems these are not readily available anymore. This was the stock LT4 camshaft. I have had one in a 383 with vortec heads and it was a torquey cam that ran out nice to about 5500 rpm with stock sounding idle.
  10. Phillip Buessing

    Wipers with a mind of their own!

    Yep, wiper module, if you are a cheapskate like me, sometimes these can be repaired if you know your way around a soldering iron. Unplug the module and remove it. Inspect the soldered joints that come through the board. Usually the solder will crack and all u have to do is heat the solder to...
  11. Phillip Buessing

    A few problems

    I agree with retorq, fuel pressure too low, you need a pump.
  12. Phillip Buessing

    Cam sensor

    Also thought I would mention that turning the distributor does not effect timing, you will increase rotor to cap terminal gap to the point it will start to crossfire to other cylinders, but this really won't change your timing much, which is based off of crankshaft position. You can run the...
  13. Phillip Buessing

    Cam sensor

    Maybe slightly improved economy, but sequential injection mostly improves emissions and smoother operation at idle speeds from what I have read. Also keep in mind most sequential port injection systems switch to bank to bank once rpms reach a certain point.
  14. Phillip Buessing

    Cam sensor

    As per GM service information- Camshaft Position (CMP) Sensor The camshaft position (CMP) sensor is located within the distributor. The operation of the CMP sensor is very similar to the crankshaft position (CKP) sensor. The CMP sensor will provide one pulse per camshaft revolution (1X...
  15. Phillip Buessing

    411 PCM swap nightmare

    Ok, here is what i would do in your situation, but keep in mind I am not an expert in these pcm swaps. I have done one, and I did not use Lextechs spread sheet. I would make sure the bin file is for your correct transmission, you did not specify whether your burb has a 4l60e or 4l80e. Maybe try...
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