RPO E5Z and E9Z?
Thread Starter
Junior Member
Joined: Jan 2010
Posts: 63
Likes: 0
From: Northern Italy
Car: '88 camaro iroc-z
Engine: 350 TPI
Transmission: TH 700 R4
Axle/Gears: 2.77 Borg Warner Axel
RPO E5Z and E9Z?
I've got these 2 codes on my 88 iroc-z tpi:
E5Z = speedometer adapter (delete)
E9Z = speedometer key (delete)
What do they mean?
thank you all!!
E5Z = speedometer adapter (delete)
E9Z = speedometer key (delete)
What do they mean?
thank you all!!
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Joined: Mar 2001
Posts: 14,298
Likes: 197
From: Doghouse ······································ Car: 1989 Formula 350 Vert Engine: 350 L98 Transmission: 700R4 Axle/Gears: B&W 3.27
Car: 87 Formula T-Top, 87 Formula HT
Engine: 5.1L TPI, 5.0L TPI
Transmission: 700R4, M5
Axle/Gears: Sag 3.73, B&W 3.45
Re: RPO E5Z and E9Z?
Unfortunately no one really knows, its one of those things that almost all Camaros have from 1987ish & on...
Supreme Member
iTrader: (1)
Joined: Sep 2002
Posts: 2,565
Likes: 10
From: Texas
Car: 1992 Formula Firebird
Engine: 305CID (LB9)
Transmission: World Class T5
Axle/Gears: 10-bolt, 4.10 gears
Re: RPO E5Z and E9Z?
I've seen these now on a 1992 Formula and a 1987 base model Firebird. I've never known what they've meant, but they seem to be pretty common.
Thread Starter
Junior Member
Joined: Jan 2010
Posts: 63
Likes: 0
From: Northern Italy
Car: '88 camaro iroc-z
Engine: 350 TPI
Transmission: TH 700 R4
Axle/Gears: 2.77 Borg Warner Axel
Re: RPO E5Z and E9Z?
Thank you guysl!
the first who discovers, will tell everyone!!
ciao
the first who discovers, will tell everyone!!
ciao
Supreme Member
iTrader: (1)
Joined: Sep 2002
Posts: 2,565
Likes: 10
From: Texas
Car: 1992 Formula Firebird
Engine: 305CID (LB9)
Transmission: World Class T5
Axle/Gears: 10-bolt, 4.10 gears
Re: RPO E5Z and E9Z?
I wonder if they aren't deletions of mechanical speedo provisions in the 1987 on up Firebird clusters. That's about all I can think of. The speedo cable, and the clip thing on the end aren't present in cars with electronic speedos. Camaros on the other hand used mechanical speedos longer.
That's about all I got.
That's about all I got.
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