Code 43 Wtf
#1
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Car: 91 Camaro RS
Engine: TPI 5.7
Transmission: T-56
Code 43 Wtf
I have just got my heads back from the machine shop, put it all together and ran great for 2 days. Now I get the code 43. I have a decently built 355 with a stealthram, P&P heads, headers, MSD 6AL, MSD coil, custom PROM, T56, etc. The definition of the code 43 is kinda blurry. ESC circuit prob, or Knock sens. prob, or too much retard in timing. Or something like that. I have checked and double checked my MSD wiring, All grounds are on the back of the heads, timing at 10* ATDC with connector disconnected. Don't know what else to do. It runs like crap when the light comes on. HELP!!!!!!!!!!!!
#2
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Car: 91 Camaro RS
Engine: TPI 5.7
Transmission: T-56
Code 43 Wtf?
I have just got my heads back from the machine shop, put it all together and ran great for 2 days. Now I get the code 43. I have a decently built 355 with a stealthram, P&P heads, headers, MSD 6AL, MSD coil, custom PROM, T56, etc. The definition of the code 43 is kinda blurry. ESC circuit prob, or Knock sens. prob, or too much retard in timing. Or something like that. I have checked and double checked my MSD wiring, All grounds are on the back of the heads, timing at 10* ATDC with connector disconnected. Don't know what else to do. It runs like crap when the light comes on. HELP!!!!!!!!!!!!
#3
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Car: '91 Z28
Engine: L98 5.7L TPI
Transmission: 700R4
Axle/Gears: 323's
did you check the wiring to the knock sensor itself? although i don't have the procedure in front of me, that is probably the issue. do a search and you will find how to check it. first thing to do, though, is disconnect it, turn the key on, and see if you have power in that wire to the sensor. i believe it's supposed to be 4-6 volts. if you do, then you need to check the sensor itself.
#4
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Car: 92 Form, 91 Z28, 89 GTA, 86 Z28
Engine: 5.7 TPI, LG4
Transmission: 700R4, 700R4
Axle/Gears: 3.27, 2.73
Hope the 10 deg ATDC is a typo and it's really 6-10 deg BTDC. Otherwise it may be failing the knock diagnostics (where it adds a crapload of timing until it detects knock, then says it's ok if the sensor did pick that up).
It's likely something else though, like a disconnected sensor or whatnot.
It's likely something else though, like a disconnected sensor or whatnot.
#5
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Car: 1991 Z28 & 1992 Z28
Engine: LB9 & L98
Transmission: T56 & T56
Axle/Gears: 4.10s & 3.23s
One quick note... If your knock sensor ends up being bad, use a GM REPLACEMENT!!! the factory AC DELCO... trust me on this
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