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  1. Thread: Oil Catch Can

    by vetteoz
    Replies
    17
    Views
    3,361

    Question: Correct. BUT under low intake vac conditions...

    Correct.

    BUT under low intake vac conditions like WOT , the crankcase fumes are pumped back up the PCV intake line from the pass side valve cover to the port on the TB ;
    Hense the crud in the...
  2. Replies
    5
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    1,743

    :thumb The "paperclip method" - it does more...

    :thumb

    The "paperclip method" - it does more than you think, even on '96 cars! - CorvetteForum - Chevrolet Corvette Forum Discussion
  3. Thread: fuel gauge

    by vetteoz
    Replies
    2
    Views
    1,037

    Question: Pull and check the sender unit Read Fuel...

    Pull and check the sender unit

    Read
    Fuel Gauge Sending Unit Repair Tech Article. - Corvette Forum
  4. Having your foot on the pedal ( > 25% throttle ?...

    Having your foot on the pedal ( > 25% throttle ? ) while cranking over shuts of the injectors

    FWIW
    You can't " pump gas' on a EFI engine ; there is no accelerator pump like on a carb.
    All you...
  5. Replies
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    2,190

    :thumb But check if you have a plug blocking...

    :thumb

    But check if you have a plug blocking one threaded hole between the spark plugs
    If you do ,you want that one the drv side as the empty hole is for the temp gauge sender on pass side as...
  6. Replies
    2
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    1,092

    Help! 95 /96 is different There are 3 relays and two...

    95 /96 is different

    There are 3 relays and two modes of operation when the fans run.

    Both fans run at slow speed when the PCM grounds pin A11 Dark Green wire which energizes Relay #1.

    Both...
  7. Replies
    6
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    2,123

    Only effects warmup time ; once it is open has...

    Only effects warmup time ; once it is open has little effect on max temp


    Pri fan doesn't turn on until 228F
    Is normal for temp to rise quickly when stopped

    Pull the radiator , blow out 30...
  8. Thread: won't start

    by vetteoz
    Replies
    2
    Views
    1,102

    .mainstreamtopics.com/forums/topic/78-lt1-no-start...

    .mainstreamtopics.com/forums/topic/78-lt1-no-start-diagnostic/

    Put the 3w in the front

    For some reason everytime I put a html link up this site changes to to something else
  9. Question: As stated above, the CTS that the ECM uses for...

    As stated above, the CTS that the ECM uses for its calculations ( and the digital temp indication ) is located in the water pump
    Gauge sender is in the head

    Oil temp sender is located above the...
  10. Question: Independent sources Analog temp from the...

    Independent sources

    Analog temp from the sender in the head ; digital temp from the CTS in the WP via the ECM
    Check wiring tosender, ground the relevant wire at the sender and see if the gauge...
  11. Replies
    4
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    1,111

    Help! Or a wiring / connection fault from the VSS ...

    Or a wiring / connection fault from the VSS

    Could try pulling the fault codes to see if anything present

    The "paperclip method" - it does more than you think, even on '96 cars! - Corvette Forum...
  12. Replies
    5
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    2,178

    :thumb And if you are into spirited driving...

    :thumb

    And if you are into spirited driving that is the one to buy
  13. Replies
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    2,289

    Help! Cold start injector is only functional when...

    Cold start injector is only functional when cranking the engine over cold.
    It can only present a problem to engine operation if it is mechanically faulty and leaking fuel full time ( testing...
  14. Replies
    2
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    1,145

    Help! you got problems DTC 41 is a communication fault...

    you got problems
    DTC 41 is a communication fault between the CCM and the ECM
    Start here

    Corvette Forum : DigitalCorvettes.com Corvette Forums - View Single Post - pulling my hair out

    for...
  15. Replies
    1
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    1,025

    Question: Sure Corvette Forum - View Single Post - Going...

    Sure

    Corvette Forum - View Single Post - Going Carb on C-4
  16. Replies
    11
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    3,887

    The wheels bolt on perfect. The adapters are...

    The wheels bolt on perfect.
    The adapters are only needed for " appearance" to position the wheel in the stock 84 - 87 location in relation to the guard
  17. Replies
    11
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    3,887

    The year doesn't matter Get a tape out and...

    The year doesn't matter
    Get a tape out and measure the width; either 9.5" all round or 8.5" fronts
    The 9.5" takes 275 or 285 tire , 8.5" only takes a 255 ( some save $$ and fit 245's )


    All...
  18. This why having the factory service manual for...

    This why having the factory service manual for your year almost essential
    It has fault flow charts like below to diagnose faults

    ...
  19. Thread: losing coolant

    by vetteoz
    Replies
    6
    Views
    1,938

    Help! Highly likely if you have the smell , you may...

    Highly likely if you have the smell , you may also observe excess water out the exh pipes when 1st started cold .
    There are pressure tests that can be done to determine if you have a internal...
  20. Replies
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    2,020

    Before wasting time and $$$ , pull the computer...

    Before wasting time and $$$ , pull the computer error codes to see if anything showing
    See
    C4 Corvette Diagnostic Code Recovery Techniques

    This is the 1st course of action with these cars ...
  21. Replies
    5
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    2,020

    Many well documented battery drains with age on...

    Many well documented battery drains with age on these cars.
    For example , the limit switches in the headlamp motors worn so the motors continue to draw power all the time , the power seat switches ...
  22. Replies
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    1,051

    Help! Was the ECM plugged in ? It is grounded so I...

    Was the ECM plugged in ?
    It is grounded so I doubt the current caused any problems to it.
    You may however have blown the fuse on whatever circuit caused the spark
  23. Replies
    2
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    1,478

    VATS only affects the engine starting ( takes...

    VATS only affects the engine starting ( takes out the starter and injectors )
    It has no effect on items you describe which sounds like a major power loss somewhere
    Time to get the DVM out and...
  24. The OP switch is wired in parallel to the pump...

    The OP switch is wired in parallel to the pump relay as a backup should the relay fail ; there is no " fail safe " function related to oil pressure( the input shown to the ECM is solely for...
  25. Thread: L98 Build

    by vetteoz
    Replies
    2
    Views
    1,891

    Question: Why? You can build any SBC long block and just...

    Why?
    You can build any SBC long block and just swap your intake on when you do the engine swap

    ECM tuning will depend on the level of mods you do


    Modifications
    Mod Advice for L98 and LT1s
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