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#1 |
Join Date: Oct 2008
Location: Ontario Canada
Posts: 6
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My 1990 ZR1 runs perfectly on Lower Engine Power setting. When switched to Max it misses, looses power and runs roughly. New injectors and ECM were installed recently, same old PROM. The little pump near the right side headlight seems to run all the time with may be 10 second stops.
Any ideas? Also, know of any Good ZR1 techies n Ontario, Canada? Many thanks Last edited by KCJ; 10-04-2008 at 05:25 PM. Reason: New to site.Wish to improve posting |
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#2 |
Join Date: Sep 2006
Location: lone pine and mammoth lakes
Posts: 1,407
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sounds like you have a vacume leak in the secondary stuff thats under the plenum. corvette action center has a very good article on t shooting it.
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#3 |
![]() Join Date: Dec 2004
Location: Jacksonville, FL USA
Posts: 4,645
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I agree: Tank, check valve, hose/spyder assembly, actuators.....outside shot is also the control solenoid, but that's a long shot. Pump should run at start up for a bit and then go dark if the system is tight.
If you're careful you can r&r the plenum and reuse the gaskets in a pinch. http://corvetteactioncenter.com/foru...threadid=14272
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1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member |
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#4 |
![]() ![]() Join Date: Nov 2007
Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri
Posts: 6,493
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Nothing to add to the other posters (I would have said the same), except to say "Hullo!" Some of the finest folks anywhere to be found here - help with knowledge and parts and just good ol camaraderie!
Getting kinda chilly up thar already, isn't it?? P. |
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#5 |
![]() Join Date: Dec 2003
Location: Arcadia,OK
Posts: 3,385
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If you do need gaskets or seals, send me an email to A26B@aol.com.
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Jerry Downey JERRYS LT5 GASKETS & PARTS http://www.jerrysgaskets.com 1994 ZR-1, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc. 2016 Black-Red, 3LT-Z51 Auto 8-speed. |
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#6 |
Join Date: Oct 2008
Location: Ontario Canada
Posts: 6
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#7 | |
Join Date: Oct 2008
Location: Ontario Canada
Posts: 6
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#8 | |
Join Date: Oct 2008
Location: Ontario Canada
Posts: 6
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How much for the set? How can I tell what number my ZR1 is? Chris |
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#9 | |
Join Date: Oct 2008
Location: Ontario Canada
Posts: 6
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Thanks. |
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#10 | ||
![]() Join Date: Dec 2003
Location: Arcadia,OK
Posts: 3,385
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Quote:
Jerry
__________________
Jerry Downey JERRYS LT5 GASKETS & PARTS http://www.jerrysgaskets.com 1994 ZR-1, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc. 2016 Black-Red, 3LT-Z51 Auto 8-speed. |
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