Page 2 of 3 FirstFirst 123 LastLast
Results 21 to 40 of 44

02 Z/28 dies when engine warms up.

This is a discussion on 02 Z/28 dies when engine warms up. within the General Help forums, part of the LSx Technical Help Section category; I'm willing to try anything before I fork over hundreds to the dealer. I don't know the voltage they are ...

  1. #21
    Senior Member Danger731's Avatar
    Join Date
    Aug 2000
    Location
    Indy
    Posts
    6,712
    I'm willing to try anything before I fork over hundreds to the dealer. I don't know the voltage they are supposed to send. Or if it is different in closed loop.
    It is definitely related to the engine hitting op temp.

    I'm free all weekend so ..........

  2. #22
    Smiles for 9.5 Years cammed goat's Avatar
    Join Date
    Jan 2009
    Location
    Paterson/Ridgewood, NJ
    Posts
    11,474

    Phantom Black Metallic
    2004 GTO M6

    I enjoyed using the Solus scanner at my old job when my car threw codes. Saved my @$$ some $$$. We have a Modus at my new job so I am still safe in the future.

  3. #23
    Senior Member Danger731's Avatar
    Join Date
    Aug 2000
    Location
    Indy
    Posts
    6,712
    Yeah, nice to have a code to go by.....

  4. #24
    Smiles for 9.5 Years cammed goat's Avatar
    Join Date
    Jan 2009
    Location
    Paterson/Ridgewood, NJ
    Posts
    11,474

    Phantom Black Metallic
    2004 GTO M6

    Is your car stock?

  5. #25
    Awaiting Activation
    Join Date
    Oct 2007
    Location
    NC
    Posts
    635

    SOM
    1998 T.A.

    He doesn't need a tool that will just read codes, he needs one that will that will tell him what values the PCM sees from the MAF, MAP, o2's, CTS, etc.... That is what a tech II, Snap on etc.... will do that separates them from just a code reader.

  6. #26
    Smiles for 9.5 Years cammed goat's Avatar
    Join Date
    Jan 2009
    Location
    Paterson/Ridgewood, NJ
    Posts
    11,474

    Phantom Black Metallic
    2004 GTO M6

    Quote Originally Posted by SOMbitch View Post
    He doesn't need a tool that will just read codes, he needs one that will that will tell him what values the PCM sees from the MAF, MAP, o2's, CTS, etc.... That is what a tech II, Snap on etc.... will do that separates them from just a code reader.
    Yah. A Solus or Modus will give output readings.

  7. #27
    Awaiting Activation
    Join Date
    Oct 2007
    Location
    NC
    Posts
    635

    SOM
    1998 T.A.

    Quote Originally Posted by cammed goat View Post
    Yah. A Solus or Modus will give output readings.

    That's cool.......wasn't familiar with either of those....

  8. #28
    Junior Member
    Join Date
    Feb 2007
    Location
    East coast
    Posts
    9
    check voltage at CTS coolant temp sensor...... should be about 5 volts.....
    YELLOW WIRE.... POSSIBLE CORROSION ON CONTACTS INSIDE BLOCK

  9. #29
    Senior Member Danger731's Avatar
    Join Date
    Aug 2000
    Location
    Indy
    Posts
    6,712
    Quote Originally Posted by cammed goat View Post
    Is your car stock?
    basically
    04 C5 A4 Torch Red

    2009 CTS4 Ice Black

    2013 1500 Silverado Z71

    02 Z/28 M6 Onyx Black All Options - Sold

  10. #30
    Blown, Stroked, & Sprayed

    Ed Blown Vert's Avatar
    Join Date
    Aug 1999
    Location
    San Diego, Ca
    Posts
    50,747

    Black
    383 Procharged & N20 Vert

    It had a pending P0335 code. Crankcase Sensor

    Nothing else I could find. But yep, as soon as it warmed up it stalled and would not start again. It looked more like spark.

  11. #31
    Smiles for 9.5 Years cammed goat's Avatar
    Join Date
    Jan 2009
    Location
    Paterson/Ridgewood, NJ
    Posts
    11,474

    Phantom Black Metallic
    2004 GTO M6

    Sounds like an integrated "failsafe" to cause the motor to shut down due to low oil once the sensor failed.

  12. #32
    Veteran 0rion's Avatar
    Join Date
    Aug 2005
    Location
    ohio
    Posts
    22,520

    98 Formula
    06 duramax

    did you guys look at the ltft's and ect to see what they looked like? Exhaust tips sooted up or does it smell rich?

  13. #33
    Junior Member
    Join Date
    Dec 2009
    Location
    Calgary, Canada
    Posts
    22

    Silver
    87 Monte SS

    Well I don't think it's your O2 sensors, they won't cause the car to just die. They can throw your fuel trims out of whack causing poor running. Coolant temperature sensor won't cause it to die either, it can cause the vehicle to run rich or lean, as the computer richens up a cold engine. Definitely don't replace your coils, as this could cost a lot of money, and there are 8 of them completely independent of each other, and they won't all fail at once. Does the vehicle just die as though you shut the car off, or does it stumble at all? I would definitely be chasing the crankcase sensor code though, as mentioned, it probably sees no oil in the pan and is shutting the engine off. Probably an inexpensive sensor, and fairly easy to change. Also crankshaft position sensors are known for quitting when they get hot and working when they get cold again. That will kill the engine instantly. If you have access to an LED test light, or even just an LED bulb for that matter, when the vehicle won't start, unplug a fuel injector and jump across the two terminals in the connector and crank the engine, if the LED doesn't flash, which I'm sure it won't by the sounds of it, that means the computer itself isn't even trying to start the engine, if the LED flashes that rules out the crankshaft position sensor and the crankcase sensor. You must use an LED as a standard bulb won't light up because the pulse is too quick. And make sure you put the LED or LED test light in both ways and try it, LEDs only work one way. You can also check with the key in the run position if you have 5 volts one of the injector wires, I'm sure there is, but you may as well check while you have one unplugged. If you don't, you may have some serious computer problems.

  14. #34
    Blown, Stroked, & Sprayed

    Ed Blown Vert's Avatar
    Join Date
    Aug 1999
    Location
    San Diego, Ca
    Posts
    50,747

    Black
    383 Procharged & N20 Vert

    Yep, it just died like you turned the key off. No stumble at all. I am pretty sure its spark related, not fuel.

    I am still leaning towards the Crankcase sensor.

  15. #35
    Senior Member Danger731's Avatar
    Join Date
    Aug 2000
    Location
    Indy
    Posts
    6,712
    I did a search looking for the location of the CPS but I don't know where it is yet. There is no spark at all whern it shuts down. Ed verified this on the laptop. No RPM jump when you crank it.

  16. #36
    Blown, Stroked, & Sprayed

    Ed Blown Vert's Avatar
    Join Date
    Aug 1999
    Location
    San Diego, Ca
    Posts
    50,747

    Black
    383 Procharged & N20 Vert

    I think its just above the starter. You will probably have to take it off to reach it.
    Seems simple enough to start with.

  17. #37
    Senior Member Danger731's Avatar
    Join Date
    Aug 2000
    Location
    Indy
    Posts
    6,712
    yeah, will do. thnks.

  18. #38
    Member Goldcuffs's Avatar
    Join Date
    Aug 2008
    Location
    Florida
    Posts
    411

    Silver
    2000 Trans Am

    Quote Originally Posted by Danger731 View Post
    I did a search looking for the location of the CPS but I don't know where it is yet. There is no spark at all whern it shuts down. Ed verified this on the laptop. No RPM jump when you crank it.
    If you have no RPM reference when cranked then your on the right track with the crank sensor. If you replace it with a zone sensor and it fixes it I would highly recommend spending the extra money on a GM sensor. (Or just do that to begin with)

  19. #39
    Senior Member Danger731's Avatar
    Join Date
    Aug 2000
    Location
    Indy
    Posts
    6,712
    That was it ! thanks Ed ! Car has been sitting for 3 months. If I knew it would be a 60 dollar part and a 15 minute job !

    Time to make that slow ass vette sit !

    Well guess one good thing came out of my Silverado getting T boned !
    Last edited by Danger731; 01-03-2010 at 01:26 PM.

  20. #40
    Smiles for 9.5 Years cammed goat's Avatar
    Join Date
    Jan 2009
    Location
    Paterson/Ridgewood, NJ
    Posts
    11,474

    Phantom Black Metallic
    2004 GTO M6

    Good to hear. Get those flat spots out of your tires and have some fun.

Page 2 of 3 FirstFirst 123 LastLast

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Engine almost dies
    By Horns23 in forum External Engine
    Replies: 4
    Last Post: 11-13-2010, 01:56 PM
  2. Oil pressure high...75 at start & until warms up
    By Z28er in forum General Help
    Replies: 13
    Last Post: 04-07-2010, 01:53 PM
  3. engine misfires then dies, then runs fine....
    By DemonSpeed in forum General Help
    Replies: 4
    Last Post: 06-24-2009, 04:14 AM
  4. Misfires when engine warms up... help!!!
    By Shnukemz in forum LT1
    Replies: 5
    Last Post: 10-05-2006, 04:27 PM
  5. engine dies when alternator is connected
    By RAT454 in forum General Help
    Replies: 0
    Last Post: 09-04-2006, 11:31 AM

Bookmarks

Posting Permissions

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