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

code 43 problem

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Old 03-31-2008, 02:21 PM
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Location: belgium
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Car: camaro
Engine: 3.1 :(
Transmission: 700r4
Axle/Gears: stock
code 43 problem

well I used to get a code 43.
well after i hooked up my computer to it. i see that my car gets knocks, but that my computer doesn't pull the timing when it registers the knocks.
well today i changed my ESC module together with my rotor.
looks like i just spilled some good greenies on stuff that didn't work.
still get code 43 and still runs like ****.
I can still place another knock sensor ( altough I'm 90% positive it aint gonna change **** )




does anybody else here has any good idea what can cuse the code 43 how to stop it.
I'm trough with driving with car that drives like **** when it gets hot.
if I can't get it fixed soon I'm parting the car out and bring pieces i can't sell to the crusher.
i'm even thinking about buying a honda civic or so.
Old 04-02-2008, 10:11 PM
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Car: 90 RS/90 Z-71/73 Vega
Engine: 3.1/5.7 TBI/5.7
Transmission: 700R4/700R4/350turbo
Axle/Gears: 3.23/3.42/3.42
Re: code 43 problem

I think your down to the ECM?..its also possible that the Mem-Cal is faulty have you tried a ECM yet?.Your voltage should be between 4-6 volts from the harness (wire from ECM to Knock sensor) and ground.if its over 6 volts its shorted to voltage and under 4 its shorted to ground..both conditions could also be a faulty ECM ,so I would try that first?.Also when checking the voltage make sure the coolant is above 67 C..if you have to check voltage.
Old 04-03-2008, 05:40 AM
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Join Date: May 2006
Location: belgium
Posts: 496
Received 19 Likes on 5 Posts
Car: camaro
Engine: 3.1 :(
Transmission: 700r4
Axle/Gears: stock
Re: code 43 problem

well, we found the problem, havent fixed it yet.
it looks like my knock sensor isn't connected.
there isn't even a wire running to the neighberhood of the knocksensor.
so tomorrow we are gonna tke of the starter ( creating a bit more searchroom ) and start looking for a blue wire. if we can't find it i will put a new wire in place. ( knocksensor itself will also be replaced )
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