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Old 07-11-2021   #1
AndiZR1
 
Join Date: May 2020
Location: Fort Lauderdale
Posts: 6
Default My 93 sputters and dies NEED HELP

Hi,

I have a n issue with my 93 ZR1.

A few weeks ago my ZR-1 started to die when she was cold and I had to keep her on RPMS to keep her running.

Now the issue is worse and she runs rougher and dies directly after starting.

Has anyone had similar problems and may knows where I should start searching for the problem?

Thanks you all!
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Old 07-11-2021   #2
A26B
 
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Location: Arcadia,OK
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Default Re: My 93 sputters and dies NEED HELP

Test Fuel Pump Pressure
Search "Solutions" at the top of the page where you posted this thread
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JERRYS LT5 GASKETS & PARTS
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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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Old 07-12-2021   #3
wfot
 
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Location: New jersey
Posts: 156
Default Re: My 93 sputters and dies NEED HELP

what jerry said above
and possibly check out the idle control motor..
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Old 07-12-2021   #4
dredgeguy
 
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Location: Ellicott City, MD
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Default Re: My 93 sputters and dies NEED HELP

Check to see if one of the rubber hoses disconnected from one of the fuel pumps. Pull the fuel pump assembly from the tank and check, takes less than 30 minutes. That was the problem with mine. A new stainless steel clamp fixed the problem.
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1992 Bright Red/Black ZR1 #246
Dana 4:10 gears
Polished LT5 by Haibeck
Polished Fikse FM5's with Michelin Pilot Sport 2
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Old 07-12-2021   #5
Stingray1967
 
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Join Date: Sep 2017
Location: Twin Cities, MN
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Default Re: My 93 sputters and dies NEED HELP

My situation was this. Car would start up fine, run great for two minutes, and then stumble. It was the oxygen sensors.
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Old 07-12-2021   #6
AndiZR1
 
Join Date: May 2020
Location: Fort Lauderdale
Posts: 6
Default Re: My 93 sputters and dies NEED HELP

Hi Guys! Thanks for your input.

I found the Problem. It was the vaccum hose that was detached from the MAP Sensor.
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Old 07-12-2021   #7
Erik
 
Join Date: Nov 2016
Location: New Brunswick
Posts: 961
Default Re: My 93 sputters and dies NEED HELP

Quote:
Originally Posted by AndiZR1 View Post
Hi Guys! Thanks for your input.

I found the Problem. It was the vaccum hose that was detached from the MAP Sensor.
May your problems always be so easy!

Congrats.
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Old 07-13-2021   #8
wfot
 
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Location: New jersey
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Default Re: My 93 sputters and dies NEED HELP

watch out for backfires, they can pop that hose off...
FYI
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Old 07-13-2021   #9
AndiZR1
 
Join Date: May 2020
Location: Fort Lauderdale
Posts: 6
Default Re: My 93 sputters and dies NEED HELP

Quote:
Originally Posted by wfot View Post
watch out for backfires, they can pop that hose off...
FYI
Thanks... if so what do you think can cause that?
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Old 07-13-2021   #10
A26B
 
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Location: Arcadia,OK
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Default Re: My 93 sputters and dies NEED HELP

Cause: Releasing ignition key too soon from start position.
Cure: Hold key in start position just a second longer


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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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