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10-13-2013
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#21 |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,666
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Re: Throttle hesitation diagnostics?
IM is worth it's weight in gold. Think about where it has to survive and what function it performs. Like a number f other systems on the LT-5, the IM is a
Co-processor to the ECM performing functions the base code didn't do.
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[SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX |
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10-13-2013
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#22 |
 Join Date: May 2013
Location: Beaver, PA
Posts: 516
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Re: Throttle hesitation diagnostics?
I would follow chart A7 in FSM to check fuel system on pages 6e3-A-29 thru 31. Your work looks good so far.
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10-15-2013
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#23 |
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Join Date: Feb 2011
Location: San Marcos CA
Posts: 1,802
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Re: Throttle hesitation diagnostics?
Didn't you convert this car to an automatic? It is a good possibility the calibration needs more "accelerator pump shot".
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10-15-2013
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#24 | |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,666
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Re: Throttle hesitation diagnostics?
Quote:
__________________
[SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX |
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10-15-2013
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#25 |
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Join Date: Feb 2011
Location: San Marcos CA
Posts: 1,802
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Re: Throttle hesitation diagnostics?
Those seals always come off- forget about it if you can't see it anymore. Just find any Bosch style injector on a junkyard car and pocket a few extras.
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10-15-2013
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#26 | |
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Join Date: Dec 2012
Location: NC
Posts: 1,786
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Re: Throttle hesitation diagnostics?
Quote:
And I've always pulled the injector & rail assembly (and re-installed) as a whole - LT1's anyway. Is it easier to remove the rails withOUT them in place?
__________________
I'm getting my snappics / threads removed blindly as fast as I can, to get in compliance with copyright / license TOS on the boards here (lots of FSM pages and other copyright / license violations on my part; sorry guys). And thanks to all the guys who didn't whine when I posted those FSM copyrighted / licensed stuff in my threads... ( :thumbsup: [b]and to think I complied with a mod's request to delete a pic of him in a Challenge Car in NCM Museum, so he wouldn't get in hot water)[/b] Thanks to several guys here for sending parts FREE; BearlyFlying, WeGone, Geezer, GoldCylon, and more there, TonyD, mike100, fletchusmc... 1990 #2794; 4L60e Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless, Power Effects 3" [IMG]https://lh5.googleusercontent.com/-GHpfzty7DVU/UQn-0Ru2xAI/AAAAAAAAA14/08mz1p4QLD4/s445/Screenshot-5.png[/IMG] |
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10-15-2013
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#27 |
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Join Date: Dec 2012
Location: NC
Posts: 1,786
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Re: Throttle hesitation diagnostics?
Should I pull the IH's next? Or DIS?
__________________
I'm getting my snappics / threads removed blindly as fast as I can, to get in compliance with copyright / license TOS on the boards here (lots of FSM pages and other copyright / license violations on my part; sorry guys). And thanks to all the guys who didn't whine when I posted those FSM copyrighted / licensed stuff in my threads... ( :thumbsup: [b]and to think I complied with a mod's request to delete a pic of him in a Challenge Car in NCM Museum, so he wouldn't get in hot water)[/b] Thanks to several guys here for sending parts FREE; BearlyFlying, WeGone, Geezer, GoldCylon, and more there, TonyD, mike100, fletchusmc... 1990 #2794; 4L60e Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless, Power Effects 3" [IMG]https://lh5.googleusercontent.com/-GHpfzty7DVU/UQn-0Ru2xAI/AAAAAAAAA14/08mz1p4QLD4/s445/Screenshot-5.png[/IMG] Last edited by Schrade; 10-15-2013 at 08:01 PM. |
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10-15-2013
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#28 |
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Join Date: Dec 2012
Location: NC
Posts: 1,786
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Re: Throttle hesitation diagnostics?
Injector looms - will they come up off of the back of the IH's? How?
Or does each wire have to come out of the loom first?
__________________
I'm getting my snappics / threads removed blindly as fast as I can, to get in compliance with copyright / license TOS on the boards here (lots of FSM pages and other copyright / license violations on my part; sorry guys). And thanks to all the guys who didn't whine when I posted those FSM copyrighted / licensed stuff in my threads... ( :thumbsup: [b]and to think I complied with a mod's request to delete a pic of him in a Challenge Car in NCM Museum, so he wouldn't get in hot water)[/b] Thanks to several guys here for sending parts FREE; BearlyFlying, WeGone, Geezer, GoldCylon, and more there, TonyD, mike100, fletchusmc... 1990 #2794; 4L60e Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless, Power Effects 3" [IMG]https://lh5.googleusercontent.com/-GHpfzty7DVU/UQn-0Ru2xAI/AAAAAAAAA14/08mz1p4QLD4/s445/Screenshot-5.png[/IMG] Last edited by Schrade; 10-15-2013 at 08:03 PM. |
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10-15-2013
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#29 | |
  
Join Date: Aug 2009
Location: South Dakota/California
Posts: 3,788
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Re: Throttle hesitation diagnostics?
Do not remove those clips from the injector wire harness (just push on them and they will release)...if you remove them just something more that can fall where you do not want it.
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10-15-2013
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#30 | |
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Join Date: Aug 2009
Location: South Dakota/California
Posts: 3,788
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Re: Throttle hesitation diagnostics?
yes
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Linear Mode
