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Old Sep 3, 2010 | 04:55 PM
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Default RPO Codes Questions

I've been having fun researching codes and learning about my car.

My car is a 2003 Coupe. It came with RPO codes Z51 (Performance Handling Pkg.) and FE3 (Sport Suspension System). Did most C5s come this way? What was changed from the base suspension?

My car has code FFS, Revised Fuel Tank system. Is this the setup that plagues some 04s?

It has 1SB, the Preferred Equipment Package. It also has 1SZ, which I haven't figured out yet.

I has codes MM6 and MN6. MM6 is the Borg-Warner 6-speed manual tranny. MN6 is Manual transmission, provisions. Am I correct that this code covers the clutch assembly and everything else that differs from an automatic: shifter, transmission mounts, etc.?

Thanks
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Old Sep 3, 2010 | 05:04 PM
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Well, I partly answered one of my questions. In 2003, 2592 Corvettes had the Z51 option, which put larger anti-sway bars front and rear.

Last edited by A Marsh; Sep 3, 2010 at 05:10 PM.
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Old Sep 3, 2010 | 09:19 PM
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1SZ was the Preferred Equipment Savings Group - certain thing were grouped together and the buyer was given a discount.

The Z51 package was an option on the coupe/vert and included stiffer springs and stablizer bars. It required the performance differential for the A4 cars.

MM6 Transmission, Manual 6-speed, Borg Warner
MN6 Merchandised Transmission, Manual 6-speed Provisions

I would assume that the MM6 and MN6 do cover the clutch assembly and everything else that differs from an automatic.
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Old Sep 3, 2010 | 10:53 PM
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Default yes on FFS

Originally Posted by A Marsh
I've been having fun researching codes and learning about my car.

My car is a 2003 Coupe.

My car has code FFS, Revised Fuel Tank system. Is this the setup that plagues some 04s?
There were so many items replaced w/this new design that FFS was assigned to the new system you have. It carried over to C6.

Since yours is a late 2003, read up on post 514 page 26 at end of
http://forums.corvetteforum.com/show....php?t=2430894
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Old Sep 3, 2010 | 11:02 PM
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And check your specs on
http://www.corvetteactioncenter.com/
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