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05-19-2024
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#1 |
 Join Date: Jan 2024
Location: Boston, MA
Posts: 197
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Code 61 with secondary system removed?
My 1994 has the secondaries system deleted, yet still popped a code 61. I'll dig through my FSM, but any ideas on what to look for? I cleared it and will see if it comes back. Thank you.
__________________
1987: Z51 Coupe, Z51, 4+3, Yellow / Graphite, 310 RWHP 350ck L98 1994: ZR-1 #150, Admiral Blue / Black, 445 RWHP 350ci LT5 2015: Z06 Coupe, Z07, M7, Arctic White / Red, Stock LT4 Last edited by scorp508; 05-20-2024 at 08:55 AM. |
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05-20-2024
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#2 |
 
Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,157
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Re: Code 61 with secondary system removed?
Have you changed the PROM or the BIN in the PROM or is is this how you got it?
__________________
1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Shelby Series 1 - Wilwood Brakes Custom Interior NCM Lifetime Member #978 |
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05-20-2024
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#3 |
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Join Date: Jan 2024
Location: Boston, MA
Posts: 197
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Re: Code 61 with secondary system removed?
How I got it. I read the program off it for safe keeping but haven't changed anything yet.
__________________
1987: Z51 Coupe, Z51, 4+3, Yellow / Graphite, 310 RWHP 350ck L98 1994: ZR-1 #150, Admiral Blue / Black, 445 RWHP 350ci LT5 2015: Z06 Coupe, Z07, M7, Arctic White / Red, Stock LT4 Last edited by scorp508; 05-20-2024 at 08:55 AM. |
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05-20-2024
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#4 |
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Join Date: Jan 2024
Location: Boston, MA
Posts: 197
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Re: Code 61 with secondary system removed?
I confirmed in TunerPro both...
"Port Throttle System Diag. (Error 61)" "Port Throttle Vacuum Dag. (Error 56)" Are both enabled in the BIN. Should one or both have been disabled? The tables... "Port Throttle Opening Point vs. RPM" "Port Throttle Closing Point vs. RPM" .... are both entirely set to 0% TPS, which looks correct given the secondaries are removed. |
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05-22-2024
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#5 | |
Join Date: Jun 2022
Location: Virginia
Posts: 84
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Re: Code 61 with secondary system removed?
Quote:
56 and 61 should both be disabled (not selected) if your secondaries were deleted. |
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05-20-2024
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#6 |
 Join Date: Aug 2005
Location: Fishers, IN
Posts: 812
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Re: Code 61 with secondary system removed?
scorp, those diagnostics are looking for min and max voltages at the port throttle vacuum sensor. They need to be changed if you have removed throttles and vac sensor.
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05-29-2024
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#7 |
Join Date: Sep 2016
Location: Ocala, FL
Posts: 897
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Re: Code 61 with secondary system removed?
Has your prom chip been reprogrammed for secondary delete by Marc Heibeck?
__________________
Steve Young 1991 ZR-1 Quasar Blue Metallic/Black #729 Second Owner 1991 ZR-1 Dark Red Metallic/Black #2040 SOLD 1990 ZR-1 Dark Red Metallic/Saddle #1670 SOLD Double your happiness.....complain half as much. |
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05-30-2024
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#8 | |
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Join Date: Jan 2024
Location: Boston, MA
Posts: 197
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Re: Code 61 with secondary system removed?
Quote:
I'll burn a new one and see how it does. Waiting on USPS to deliver a few more EEPROMs as I can't find my stash.
__________________
1987: Z51 Coupe, Z51, 4+3, Yellow / Graphite, 310 RWHP 350ck L98 1994: ZR-1 #150, Admiral Blue / Black, 445 RWHP 350ci LT5 2015: Z06 Coupe, Z07, M7, Arctic White / Red, Stock LT4 |
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05-30-2024
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#9 |
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Join Date: Aug 2005
Location: Fishers, IN
Posts: 812
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Re: Code 61 with secondary system removed?
I recommend not just turning the flags off but changing the voltage thresholds themselves also. There is a max vac for open and min for close, if I recall . I don?t have my notes right now though.
Sent from my iPhone using ZR-1 Net Registry |
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06-03-2024
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#10 |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,685
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Re: Code 61 with secondary system removed?
Here's the values.
Last edited by XfireZ51; 07-13-2024 at 10:38 AM. |
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