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Old 04-10-2019   #41
Ccmano
 
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Join Date: Jun 2006
Location: Sparks, NV
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Default Re: 1990 ZR-1 Hesitation when full Power

Quote:
Originally Posted by frantinoro View Post
Okay, I'll test it later when I am out of school. One thing I did notice is my car would stay in closed loop - I assumed it would go into open loop once warm, no?
Its the other way round, That’s normal, starts in open loop when cold then transitions to closed loop (operating off the sensors) when hot.
H
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90'ZR-1 #1461 Red/Black
Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold
08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold
05 C6 Z51 Red/Black Sold
90'ZR-1 #1723 Black/Gray Sold but not forgotten
91' Z51 L98 White Vert. My First, you always remember your first. Sold.
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Old 04-10-2019   #42
frantinoro
 
Join Date: Dec 2018
Location: Long Beach, CA
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Default Re: 1990 ZR-1 Hesitation when full Power

This may sound weird, but I put some gas in the vette because it was so low, and it's not throwing the code anymore...
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Old 04-10-2019   #43
Ccmano
 
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Join Date: Jun 2006
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Default Re: 1990 ZR-1 Hesitation when full Power

Fuel level should not be an issue. There something going on with fuel delivery especially given the other symptoms.
H
__________________
90'ZR-1 #1461 Red/Black
Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold
08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold
05 C6 Z51 Red/Black Sold
90'ZR-1 #1723 Black/Gray Sold but not forgotten
91' Z51 L98 White Vert. My First, you always remember your first. Sold.
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