GM Truck Club
THE PREMIER CHEVY TRUCK & SUV FORUM
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Results 1 to 2 of 2
  1. #1

    Exclamation Code P0200 abd P0300

    so last night a couple friends and i went through the proses of changing out my knock sensors. after a couple of hours of working and jacking around we finally got the intake man. off and got to the sensors. replaces both sensors and went about on reinstalling everything back. once everything was reinstalled i went to start my truck and of course it took a little while to start cause off the lack of gas, once it finally got around to it started. ran nasty at first then idled OK but now its just real choppy and you can hear and feel the misfires. the first code that popped up was the P0200 injector circuit, then after leaving it running a while and taking it around the block the P0300 random misfire popped up, i have no idea what the problem could be. there are no gas leaks, everything seems to be hooked up the same way it came off. i just dont know where to even start to try to solve the problem. does anyone have any help for me?? im leaving for dallas on july 7th to start school, and i still have to put my truck in the shop for my front bumper cause i had a very minor fender bender, and i still have to install my new full leveling kit and alignment short after that, so i dont have much time at all. please help
    Last edited by nickpatton_189; 06-29-2010 at 08:58 PM.

    2006 silverado z71
    295-70-R17 nitto trail grapplers
    flowmaster 40 series dumped
    2'' rough country leveling kit
    k&n CAI
    throttle body spacer
    De-badged
    15'' kicker cvr & 2 10'' kicker cvr /w 1800 watt kenwood amp
    7'' jvc kw avx810 double din
    diablosport predator

  2. #2
    Sr. Engineer
    Join Date
    Jun 2009
    Location
    San Diego, CA
    Posts
    426

    Default

    How are your cats? Check your spark plugs and wires as well, make sure the wires aren't loose.
    Black Bear Performance- Custom Tuning Solutions

    Authorized EFILive and MAGNACHARGER seller

Similar Threads

  1. 2001 Chevy Silverado 5.3 code P0300 help
    By 1quick6 in forum General Chevy & GM Tech Questions
    Replies: 5
    Last Post: 06-28-2010, 05:09 PM
  2. p0300 code?
    By dshewy14 in forum General Chevy & GM Tech Questions
    Replies: 8
    Last Post: 04-13-2010, 12:02 PM
  3. need help P0300
    By cable734 in forum GM Powertrain
    Replies: 5
    Last Post: 03-05-2010, 12:51 AM
  4. P0300 Code
    By sociald in forum General Chevy & GM Tech Questions
    Replies: 3
    Last Post: 01-17-2009, 05:07 AM
  5. Code P0300
    By msm1889 in forum General Chevy & GM Tech Questions
    Replies: 1
    Last Post: 04-10-2008, 07:52 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •