V6 Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.

Code 43 help

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Old Sep 9, 2003 | 10:04 AM
  #1  
9D1BURD's Avatar
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Joined: May 2001
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From: Bloomingdale, IL , United States
Car: 1997 Z28
Engine: LS1
Transmission: T56
Axle/Gears: 3.42
Code 43 help

I am getting a code 43, after looking this up i am a little confused about where to start.

According to the description i read, it has to do with low voltage to the timing circuit?

What should i start with? Could this be knock sensor related?

Any help would be great, i would like to start on it tonight, just need some direction first.


Thanks
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Old Sep 9, 2003 | 11:36 AM
  #2  
Doward's Avatar
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Joined: Aug 2002
Posts: 3,827
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From: Gainesville, FL
Car: 1988 Chevy Camaro Hardtop
Engine: Turbocharged/Intercooled 3.1
Transmission: World Class T5 5 Speed
code 43 seems to be low voltage EST? I'd test teh knock sensor, and find out if your 3.1 has an EST relay module or something...

anyone have the actual flow chart diagnosis for it?
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Old Sep 9, 2003 | 07:11 PM
  #3  
camaro_junkie's Avatar
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Joined: Apr 2003
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From: Vancouver, BC
Car: '86 Camaro SC, '16 QX60
Engine: 2.8 V6 POWER, 3.5L V6 N/A
Transmission: T-5, CVT
Code 43 is electronic spark control ESC. Go to http://www.ece.ubc.ca/~jcoatta/6E3-A2-60.jpg and
http://www.ece.ubc.ca/~jcoatta/6E3-A2-61.jpg for the flow charts. These are for an '86 5.0L, but they should apply to your car. Reply to this message when you've downloaded them so I can remove them.
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Old Sep 10, 2003 | 08:34 AM
  #4  
9D1BURD's Avatar
Thread Starter
Moderator/TGO Supporter
 
Joined: May 2001
Posts: 2,481
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From: Bloomingdale, IL , United States
Car: 1997 Z28
Engine: LS1
Transmission: T56
Axle/Gears: 3.42
I am downloading them now, thanks. I was hoping for an easy fix, lets see how it goes.

Thanks again

anyone else wanna chime in?
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