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Thread: 4.8 LS swap into 1988 c4 corvette

  1. #21
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    Quote Originally Posted by gtstorey View Post
    If you are trying to post a log, it should have a hpl extension. And they are auto saved even if you didn't save them when closing a scan.
    ok ill go check that real quick . thank you for helping

  2. #22
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    Quote Originally Posted by gtstorey View Post
    If you are trying to post a log, it should have a hpl extension. And they are auto saved even if you didn't save them when closing a scan.
    first attemp.hpl

  3. #23
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    It's your MAP sensor. Should be reading atmospheric pressure key on engine off.

  4. #24
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    Quote Originally Posted by SiriusC1024 View Post
    It's your MAP sensor. Should be reading atmospheric pressure key on engine off.
    are you saying my mao semsior is bad

  5. #25
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    It's either that, the wrong type, or wiring.

  6. #26
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    Hey. You also have a cam sensor code. Cam sensor drives the injectors, crank sensor for the ignition.

  7. #27
    Senior Tuner edcmat-l1's Avatar
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    Quote Originally Posted by SiriusC1024 View Post
    Hey. You also have a cam sensor code. Cam sensor drives the injectors, crank sensor for the ignition.
    That should run without the cam sensor. If this is a no start we're talking about.

    And yeah the MAP is bad wrong. Need a part number off that thing.

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  8. #28
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    Quote Originally Posted by Corvette Chris 39 View Post
    mine is a 24 tooth but i dont know how to go bout checking the ecm
    I can't check your tune. What does it say that the ECM/Tune is from?

  9. #29
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    Quote Originally Posted by gtstorey View Post
    I can't check your tune. What does it say that the ECM/Tune is from?
    2000 Silverado 6.0 2500

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  10. #30
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    So matching reluctor count so that isn't the issue for the cam code.

  11. #31
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    i changed the cam sensioe last night an im still getting the code . shoukld i try to change the map

  12. #32
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    Quote Originally Posted by edcmat-l1 View Post
    That should run without the cam sensor. If this is a no start we're talking about.

    And yeah the MAP is bad wrong. Need a part number off that thing.
    part number is 09359409 3185

  13. #33
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    just wanted to let yall know i figured out the problem with the car . i had the dam cam senor wire an map sensor wire backwards! my harness didnt come with a diagram so i had to look online an youtube as well

  14. #34
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    HAHAHA. Well glad you figured it out. Got a log?

  15. #35
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    Quote Originally Posted by SiriusC1024 View Post
    HAHAHA. Well glad you figured it out. Got a log?
    24-03-27 16-57-55 finally running.hpl let me know what you think please

  16. #36
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    Quote Originally Posted by edcmat-l1 View Post
    That should run without the cam sensor. If this is a no start we're talking about.

    And yeah the MAP is bad wrong. Need a part number off that thing.
    24-03-27 16-57-55 finally running.hpl i figured it out finally thank you for helping me . i really want to learn tuning! I try to read my books as much s possible

  17. #37
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    Click the badge to the bottom left of his username and leave some +feedback.

    Now you need to get your O2 sensors working.
    Last edited by SiriusC1024; 03-28-2024 at 12:04 AM.

  18. #38
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    Quote Originally Posted by Corvette Chris 39 View Post
    24-03-27 16-57-55 finally running.hpl i figured it out finally thank you for helping me . i really want to learn tuning! I try to read my books as much s possible
    No problem. Good luck with it.

    Incidentally I'm getting ready to put an LSA in a C4. One of the nicest C4s I've seen since they were new LOL. A true unicorn.

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  19. #39
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    Quote Originally Posted by edcmat-l1 View Post
    No problem. Good luck with it.

    Incidentally I'm getting ready to put an LSA in a C4. One of the nicest C4s I've seen since they were new LOL. A true unicorn.
    Thats awespme man, when are you starting on it ? Mine has gave me hell but ive enjoyed working on it now i got to get t tuned so i can take it out the garage. ive been reading the book called tuning the right way by Bob Morreale and it all is so confusing

  20. #40
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    Quote Originally Posted by Corvette Chris 39 View Post
    Thats awespme man, when are you starting on it ? Mine has gave me hell but ive enjoyed working on it now i got to get t tuned so i can take it out the garage. ive been reading the book called tuning the right way by Bob Morreale and it all is so confusing
    I'll be starting on it in the next week or so. Got the engine sitting here along with most of the additional parts.

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