FX3 SRC Frustrations - I've Done My Homework! - ZR-1 Net Registry Forums

carguyjoe · 09-18-2021

1991 ZR-1.

SRC light came on after I had the fuel pump replaced. Likely unrelated, but just in case.

Checked the error codes, and it threw a 33. From what I understand, that's the Left Rear actuator.

Bought a new $200 actuator from Corvette Central. Replaced it and when I shook the old one, it rattled. New one did not. So assumed something was broken in the old actuator.

Put it all together, tried the C/A 2 seconds 3 times thing and the damn error 33 still comes up. Disconnected battery for 15 minutes. No luck.

Now I wish I had tested the new actuator by watching to see if it spun before I installed it, but I did not.

What am I missing? For now I'm so frustrated I just unplugged the SRC module in the trunk to turn the light off.

HELP!

HAWAIIZR-1 · 09-18-2021

Sorry I just woke up in case this is a dumb question. Did you clear the code 33? If not, it will keep showing up and will not clear itself.

Could you also have someone turn on the ignition for you while you are at the actuator to feel or hear it reset?

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carguyjoe · 09-18-2021

I tried many times to clear it by jumping the A and C for two seconds at a time, three times. Won't clear.

I can hear it moving when I turn on the ignition.

HAWAIIZR-1 · 09-18-2021

Quote:

Originally Posted by carguyjoe

I tried many times to clear it by jumping the A and C for two seconds at a time, three times. Won't clear.

I can hear it moving when I turn on the ignition.

Hmmm?sorry I can be of more help; it has been awhile.

That?s a good sign you can hear it.

Did you try to drive it yet?

https://www.corvetteactioncenter.com...src_page2.html

https://www.corvetteforum.com/forums...ng-or-not.html

Sent from my iPhone using ZR-1 Net Registry

GOLDCYLON · 09-20-2021

Did you adjust the top nut of the shock no more than 1.5 threads down before putting the actuator on? I suspect it's timing out because the actuator ride height is wrong.

32valvesftw · 09-21-2021

Quote:

Originally Posted by GOLDCYLON

Did you adjust the top nut of the shock no more than 1.5 threads down before putting the actuator on? I suspect it's timing out because the actuator ride height is wrong.

This probably is your issue. I struggled with an actuator code for about a year, the shop messed with it a couples times and it always came back. What it turned out to be the top nut was too loose. There is a spec in the manual I think it says a minimum of 5mm clearance, Mine was at 3.5 on one side. After making that adjustment I never got the code again.

carguyjoe · 09-22-2021

Thanks guys. Will check that.

carguyjoe · 09-22-2021

OK just to close this out.... I took the shock back off and the gear turned in both directions with no stops. So the actuator was not able orient itself I guess.

Put on a used shock I got off eBay and all is well. Didn't even have to clear the code 34.

I probably wasted $200 on a new actuator I didn't need, but I'll justify it by listening to the rattle in the old one. If if nothing else, I guess I have an extra.

Thanks again to all for the tips!

09-18-2021	#1
carguyjoe Join Date: Jul 2019 Location: Chicagoland Posts: 12	FX3 SRC Frustrations - I've Done My Homework! 1991 ZR-1. SRC light came on after I had the fuel pump replaced. Likely unrelated, but just in case. Checked the error codes, and it threw a 33. From what I understand, that's the Left Rear actuator. Bought a new $200 actuator from Corvette Central. Replaced it and when I shook the old one, it rattled. New one did not. So assumed something was broken in the old actuator. Put it all together, tried the C/A 2 seconds 3 times thing and the damn error 33 still comes up. Disconnected battery for 15 minutes. No luck. Now I wish I had tested the new actuator by watching to see if it spun before I installed it, but I did not. What am I missing? For now I'm so frustrated I just unplugged the SRC module in the trunk to turn the light off. HELP! __________________ 1991 Corvette ZR-1 - Polo Green/Saddle 2010 Mustang GT Convertible 2003 Thunderbird 1973 International Scout 1967 Pontiac GTO 1965 Mustang Convertible 1958 Plymouth Belvedere Convertible 1957 Ford Thunderbird Last edited by carguyjoe; 09-18-2021 at 01:53 PM. Reason: spelling

09-18-2021	#2
HAWAIIZR-1 Join Date: May 2010 Location: Japan Posts: 3,582	FX3 SRC Frustrations - I've Done My Homework! Sorry I just woke up in case this is a dumb question. Did you clear the code 33? If not, it will keep showing up and will not clear itself. Could you also have someone turn on the ignition for you while you are at the actuator to feel or hear it reset? Sent from my iPhone using ZR-1 Net Registry __________________ Craig "ZR-1 NO KA 'OI" "ZR-1 ICHIBAN" 1995 #228 Black/Black with Dunn Heads ZR-1 owner since September 2003 ZR-1 Net Registry Founding Member #0074 NCM Lifetime Member #2048 Last edited by HAWAIIZR-1; 09-18-2021 at 03:31 PM.

09-18-2021	#3
carguyjoe Join Date: Jul 2019 Location: Chicagoland Posts: 12	Re: FX3 SRC Frustrations - I've Done My Homework! I tried many times to clear it by jumping the A and C for two seconds at a time, three times. Won't clear. I can hear it moving when I turn on the ignition. __________________ 1991 Corvette ZR-1 - Polo Green/Saddle 2010 Mustang GT Convertible 2003 Thunderbird 1973 International Scout 1967 Pontiac GTO 1965 Mustang Convertible 1958 Plymouth Belvedere Convertible 1957 Ford Thunderbird Last edited by carguyjoe; 09-18-2021 at 08:55 PM.

09-20-2021	#5
GOLDCYLON Join Date: May 2007 Location: Peoria, AZ Posts: 9,155	Re: FX3 SRC Frustrations - I've Done My Homework! Did you adjust the top nut of the shock no more than 1.5 threads down before putting the actuator on? I suspect it's timing out because the actuator ride height is wrong. __________________ GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director 91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V

09-22-2021	#7
carguyjoe Join Date: Jul 2019 Location: Chicagoland Posts: 12	Re: FX3 SRC Frustrations - I've Done My Homework! Thanks guys. Will check that. __________________ 1991 Corvette ZR-1 - Polo Green/Saddle 2010 Mustang GT Convertible 2003 Thunderbird 1973 International Scout 1967 Pontiac GTO 1965 Mustang Convertible 1958 Plymouth Belvedere Convertible 1957 Ford Thunderbird

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