Code 66
TGO Supporter
Joined: Sep 2000
Posts: 6,775
Likes: 27
From: So.west IN
Car: 87 Formula/ 00 Xtreme
Engine: TPI 305/ v6
Transmission: struggling t-5/ 4l60E
Axle/Gears: 3.08/ 3.23
You sure that's the right code #? I'm not seeing a 66 (or 56 either). You might try rechecking that.
code 55 - replace the ECM. maybe you'll be lucky & it isn't that one.
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The mind is like a parachute, it only works when its open
code 55 - replace the ECM. maybe you'll be lucky & it isn't that one.
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- my Formula Homepage
- Collision P/Ns & Diagrams (Nearly complete now!)
The mind is like a parachute, it only works when its open
Supreme Member
Joined: Sep 2001
Posts: 4,231
Likes: 1
From: Manassas, VA
Car: 89 Formula Firebird
Engine: 305 - Demon 525
Transmission: 700R4
66 Air conditioning pressure sensor circuit
look at this sight for some codes
http://ecutecparts.com/ccodes/gm.html
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89 Formula Firebird
Red with T-tops
5.0 305 FI
Soon to be a 400sb.
look at this sight for some codes
http://ecutecparts.com/ccodes/gm.html
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89 Formula Firebird
Red with T-tops
5.0 305 FI
Soon to be a 400sb.
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