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Corvette
C5 Forum
New Shocks....Soon!
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<blockquote data-quote="Rruuff Day" data-source="post: 215603" data-attributes="member: 2217"><p>Here's what I found on this. Credit to CF member 2003vet.</p><p></p><p><em><span style="color: rgb(209, 72, 65)">"You cannot just take out the MRC shocks and install conventional shocks without causing an error message to appear that your speed is limited tp 80mph. There are electrical connections at the top of each shock that are connected to a controller and that in turn is connected to the main computer. You have to go through a very specific procedure with the aid of a TECH II tool to delete the F55 option. Here are the specifics from a post I copied a couple of years back:</span></em></p><p><span style="color: rgb(209, 72, 65)"><em></em></span></p><p><span style="color: rgb(209, 72, 65)"><em>1. Hook up your Tech 2 (Driver's footwell), turn the car ON, make sure the module in the left rear storage compartment (pull back the velcro lining on the front of the compartment) is plugged in. DO NOT UNPLUG THIS MODULE</em></span></p><p><em><span style="color: rgb(209, 72, 65)"></span></em></p><p><em><span style="color: rgb(209, 72, 65)">2. Now use the Tech 2 to delete the F45 option ( F55 option does not appear on the Tech 2 menu screen - SO - DELETE THE F45 OPTION</span></em></p><p><em><span style="color: rgb(209, 72, 65)">(use the screen captures - steps 2-14)</span></em></p><p><em><span style="color: rgb(209, 72, 65)"></span></em></p><p><em><span style="color: rgb(209, 72, 65)">3. Save the new configuration</span></em></p><p><em><span style="color: rgb(209, 72, 65)"></span></em></p><p><em><span style="color: rgb(209, 72, 65)">4. DO NOT TURN THE CAR OFF DO NOT REMOVE THE TECH 2 Go to the module in the rear of the car, unplug the GRAY connector - IT IS THE WIDEST ONE - leave the other 1 (F/45) or 2 (F/55) plugged in.</span></em></p><p><em><span style="color: rgb(209, 72, 65)"></span></em></p><p><em><span style="color: rgb(209, 72, 65)">5. Turn off the car but LEAVE THE TECH 2 PLUGGED IN</span></em></p><p><em><span style="color: rgb(209, 72, 65)"></span></em></p><p><em><span style="color: rgb(209, 72, 65)">6. Remove remaining plugs from module in the rear of the car - Never plug them back in again, if you do the F/45 turns on automatically.</span></em></p><p><em><span style="color: rgb(209, 72, 65)"></span></em></p><p><em><span style="color: rgb(209, 72, 65)">7. Now the moment of TRUTH - Turn the car on and verify that the dreaded - MAX SPEED 80 MPH - is gone. This message was only present if you had already disconnected the shock sensors. Some people have had to disconnect their battery to allow the computer to reset to remove this message, but I would confirm with the Tech II that the F/45 was actually deleted first and if not reconnect everything and start again with step 1.</span></em></p><p><em><span style="color: rgb(209, 72, 65)"></span></em></p><p><em><span style="color: rgb(209, 72, 65)">8. Unplug the Tech 2 - Get in the car and take it for a ride. Smile as you pass the DREADED 80 MPH.</span></em></p><p><em></em></p><p><em><span style="color: rgb(226, 80, 65)">With these instructions in their hands even the most inexperienced tech can do this. It took mine 5 minutes and they charged me $25. I would have spent much more time and effort getting and installing resistors.</span></em></p><p><em><span style="color: rgb(226, 80, 65)"></span></em></p><p><em><span style="color: rgb(226, 80, 65)">If you haven't already changed your shocks drive home carefully as the shocks become very soft, not dangerous but as GM advises keep it under 80MPH."</span></em><span style="color: rgb(226, 80, 65)"></span></p><p><span style="color: rgb(226, 80, 65)"></span></p><p><span style="color: rgb(226, 80, 65)"><em>You <strong>MUST</strong> follow the above instructions <strong>EXACTLY </strong>to delete the F55 RPO.</em> </span></p></blockquote><p></p>
[QUOTE="Rruuff Day, post: 215603, member: 2217"] Here's what I found on this. Credit to CF member 2003vet. [I][COLOR=rgb(209, 72, 65)]"You cannot just take out the MRC shocks and install conventional shocks without causing an error message to appear that your speed is limited tp 80mph. There are electrical connections at the top of each shock that are connected to a controller and that in turn is connected to the main computer. You have to go through a very specific procedure with the aid of a TECH II tool to delete the F55 option. Here are the specifics from a post I copied a couple of years back:[/COLOR][/I] [COLOR=rgb(209, 72, 65)][I] 1. Hook up your Tech 2 (Driver's footwell), turn the car ON, make sure the module in the left rear storage compartment (pull back the velcro lining on the front of the compartment) is plugged in. DO NOT UNPLUG THIS MODULE[/I][/COLOR] [I][COLOR=rgb(209, 72, 65)] 2. Now use the Tech 2 to delete the F45 option ( F55 option does not appear on the Tech 2 menu screen - SO - DELETE THE F45 OPTION (use the screen captures - steps 2-14) 3. Save the new configuration 4. DO NOT TURN THE CAR OFF DO NOT REMOVE THE TECH 2 Go to the module in the rear of the car, unplug the GRAY connector - IT IS THE WIDEST ONE - leave the other 1 (F/45) or 2 (F/55) plugged in. 5. Turn off the car but LEAVE THE TECH 2 PLUGGED IN 6. Remove remaining plugs from module in the rear of the car - Never plug them back in again, if you do the F/45 turns on automatically. 7. Now the moment of TRUTH - Turn the car on and verify that the dreaded - MAX SPEED 80 MPH - is gone. This message was only present if you had already disconnected the shock sensors. Some people have had to disconnect their battery to allow the computer to reset to remove this message, but I would confirm with the Tech II that the F/45 was actually deleted first and if not reconnect everything and start again with step 1. 8. Unplug the Tech 2 - Get in the car and take it for a ride. Smile as you pass the DREADED 80 MPH.[/COLOR] [COLOR=rgb(226, 80, 65)]With these instructions in their hands even the most inexperienced tech can do this. It took mine 5 minutes and they charged me $25. I would have spent much more time and effort getting and installing resistors. If you haven't already changed your shocks drive home carefully as the shocks become very soft, not dangerous but as GM advises keep it under 80MPH."[/COLOR][/I][COLOR=rgb(226, 80, 65)] [I]You [B]MUST[/B] follow the above instructions [B]EXACTLY [/B]to delete the F55 RPO.[/I] [/COLOR] [/QUOTE]
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