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420A Stalls when im about to shift into second

Posted by DSM eclipse 1997, Aug 28, 2019

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  1. DSM eclipse 1997

    DSM eclipse 1997 Probationary Member

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    Joined Aug 23, 2016
    Yorkton, SK, Canada
    I have a 1997 gs eclipse. It will start and idle perfectly fine, but once i start driving and am about to shift into second the car will just die and not wanna start again, Any ideas?
     
  2. randman2011

    randman2011 Proven Member

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    Joined Feb 26, 2012
    Indianapolis, Indiana
    How does this correlate to your inputs? Can you manipulate the stall by changing the timing on your clutching or how you handle throttle during shifts? This ONLY happens during shifts?

    Not wanting to start again makes it sound like it's dumping fuel to kill the engine, then since it's flooded it doesn't want to fire again.
     

    Street Build 808  1

    1998 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM
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  3. BLACK'98DSM

    BLACK'98DSM Proven Member

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    Hoover, Alabama
    Manual or automatic trans?
     

    588  5

    2012 Murray Explorer Dune
    rwd · automatic · Misc Vehicles

    Road Race Build 3K  23

    1998 Mitsubishi Eclipse N/T
    fwd · manual · 2G DSM

    433  4

    2009 Troy Bilt Bronco
    rwd · automatic · Misc Vehicles
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  4. DSM eclipse 1997

    DSM eclipse 1997 Probationary Member

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    Joined Aug 23, 2016
    Yorkton, SK, Canada
    @randman2011 Only happens when im about to shift. ill get to about 2K-25K and will just about press the clutch and it will die.
     
  5. DSM eclipse 1997

    DSM eclipse 1997 Probationary Member

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    Joined Aug 23, 2016
    Yorkton, SK, Canada
  6. Mech Addict

    Mech Addict Proven Member

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    Joined Jun 9, 2019
    Jackson, Wyoming
    What about the amount of throttle, as rnadman2011 asked? Is this only under heavy throttle, or light accel also? I believe the FIAV is supposed to keep the engine running when the throttle is abruptly closed. If misadjusted it might cause a stall. That doesn’t seem to explain a subsequent hard start condition though. I wouldn’t expect flooding, ether, though, as I would thing that wouldn’t cause a stall, more likely a backfire.
     

    Street Build 358  6

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM
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  7. Jk's97DSM

    Jk's97DSM Proven Member

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    Joined Apr 27, 2006
    Norfolk, Virginia
    Is your BOV recirculated?
     

    86  1

    1990 Mitsubishi Mirage EXE (SLO CSM)
    manual · Misc Vehicles

    Street Build 425  1

    1992 Eagle Talon TSi AWD
    awd · automatic · 1G DSM
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  8. randman2011

    randman2011 Proven Member

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    Joined Feb 26, 2012
    Indianapolis, Indiana
    He's GS, 420a. No BOV. I'm not familiar with the Chrysler engine enough to provide good comments, but stalling when pushing the clutch in was one of the telltale signs of crankwalk on the 4G63. I can't think of anything else clutch-related. Everything else would be related to throttle inputs during shifting.
     

    Street Build 808  1

    1998 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM
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  9. DSM eclipse 1997

    DSM eclipse 1997 Probationary Member

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    Joined Aug 23, 2016
    Yorkton, SK, Canada
    @Mech Addict only light acel not giving it very much throttle at all
     
  10. Mech Addict

    Mech Addict Proven Member

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    Joined Jun 9, 2019
    Jackson, Wyoming
    OK, maybe not the FIAV then. Does is stall if you just rev to 2.5k it at standstill with the clutch depressed and then take your foot off the throttle?
     

    Street Build 358  6

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM
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  11. DSM eclipse 1997

    DSM eclipse 1997 Probationary Member

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    0
    Joined Aug 23, 2016
    Yorkton, SK, Canada
  12. BLACK'98DSM

    BLACK'98DSM Proven Member

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    Hoover, Alabama
    Maybe you are losing fuel pressure. And the reason it struggles to start is because it has to build up fuel pressure. Possibly?
     

    588  5

    2012 Murray Explorer Dune
    rwd · automatic · Misc Vehicles

    Road Race Build 3K  23

    1998 Mitsubishi Eclipse N/T
    fwd · manual · 2G DSM

    433  4

    2009 Troy Bilt Bronco
    rwd · automatic · Misc Vehicles
    Loading...
  13. DSM eclipse 1997

    DSM eclipse 1997 Probationary Member

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    Joined Aug 23, 2016
    Yorkton, SK, Canada
    How would I check the fuel pressure?
     
  14. Mech Addict

    Mech Addict Proven Member

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    Joined Jun 9, 2019
    Jackson, Wyoming
    Attached is the fsm procedure. I’ve not done it myself, so perhaps others have some better tips. You will need a high pressure gauge, and a new o-ring when you’re done. Step 14 describes the check that the pressure does not drop after shutting off the car. I would leave it for some extra time to make sure there is not a slow bleed.
     

    Attached Files:

    Street Build 358  6

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM
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  15. BLACK'98DSM

    BLACK'98DSM Proven Member

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    Hoover, Alabama
    That is for the 4g63. O.P has a 420a.

    There is a little black cap on the passenger side of the fuel rail. You unscrew it and put a gauge on it
     

    588  5

    2012 Murray Explorer Dune
    rwd · automatic · Misc Vehicles

    Road Race Build 3K  23

    1998 Mitsubishi Eclipse N/T
    fwd · manual · 2G DSM

    433  4

    2009 Troy Bilt Bronco
    rwd · automatic · Misc Vehicles
    Loading...
  16. Mech Addict

    Mech Addict Proven Member

    83
    38
    Joined Jun 9, 2019
    Jackson, Wyoming
    Good call! I’m glad someone was watching to correct my mistake. I’m so used to skipping straight to the procedures for my car.
     

    Street Build 358  6

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM
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