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4 Days Ago
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#1 |
 Join Date: Jan 2024
Location: Boston, MA
Posts: 73
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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.
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1987: Z51 Coupe, Z51, 4+3, Yellow / Graphite 1994: ZR-1 #150, Admiral Blue / Black 2015: Z06 Coupe, Z07, M7, Arctic White / Red Last edited by scorp508; 3 Days Ago at 08:55 AM. |
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3 Days Ago
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#2 |
 
Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,136
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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?
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1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - 3" Magnaflow Bullet cats - LT4 Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978 |
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3 Days Ago
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#3 |
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Join Date: Jan 2024
Location: Boston, MA
Posts: 73
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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.
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1987: Z51 Coupe, Z51, 4+3, Yellow / Graphite 1994: ZR-1 #150, Admiral Blue / Black 2015: Z06 Coupe, Z07, M7, Arctic White / Red Last edited by scorp508; 3 Days Ago at 08:55 AM. |
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3 Days Ago
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#4 |
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Join Date: Jan 2024
Location: Boston, MA
Posts: 73
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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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3 Days Ago
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#5 |
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Join Date: Aug 2005
Location: Fishers, IN
Posts: 780
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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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Todd ____________________________________ *** our email address has changed! info@pepmeierengines.com pepmeierengines.com Friend us on Facebook too: www.facebook.com/profile.php?id=100011443683384 Pepmeier Engine Development |
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1 Day Ago
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#6 | |
Join Date: Jun 2022
Location: Virginia
Posts: 81
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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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Linear Mode
