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Gmc 94 1500 series trouble code 43 - 1994 GMC Sierra

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Gm obd1 codes 32 and 43


Code 32 is a problem with the EGR solenoid, and code 43 may be a problem with the knock sensor. Code 43 can set when the knock sensor is functioning correctly too.
You would need to get the troubleshooting charts for the codes to determine the problems.

Jul 11, 2014 | 1992 GMC Sierra K1500

1 Answer

No start code 43 and 54


code 43 knock sensor signal
54 Fuel pump circuit - voltage low Wiring open circuit/short circuit to ground, fuel pump relay, fuel pump, engine oil pressure warning lamp switch, ECM hope it helps

Apr 01, 2014 | 1992 GMC Yukon

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On a 1997 gmc sierra 7.5 3500 series what are these trouble codes mean?p0300 and po1345 need help asap


Everyone uses this site as you do

Have no more info than you do

Use google to get the codes

You Tube Video may allow you to at least
see, verse a diagram, how the timing components are

Jan 26, 2013 | GMC Sierra Cars & Trucks

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What does the PO1516 trouble code mean for a 2005 Isuzu 3500 HD series truck?


What does the PO1516 trouble code mean for a 2005 GMC 2500HD series truck

Aug 18, 2010 | Isuzu Pickup Cars & Trucks

1 Answer

A friend of mine hooked up a computer to My 1992 gmc sierra pickup and got error codes 44 and 43. But is not sure what they are. Please help


43= electronic spark control- ESC module is not receiving a knck signal from knock sensor.
44=Lean exhaust. check wiring and connectors from oxygen sensor to the ECM.

Aug 14, 2010 | GMC C1500 Cars & Trucks

2 Answers

Trouble code 43. 1993 C 1500 5.7 automatic


code p0043 is the heater circuit on bank 1 sensor 3.

This should not give you a drivability issue. Its the 02 sensor after the cat. When you get a heater code it always 99% of the time points to a burnt out heating element just like a house dryer does.

Jan 28, 2010 | 1996 Chevrolet C1500

1 Answer

Getting codes 12 43 42 42 55 96 caravan 3.3liter


55 is the ending of every code so that isnt a trouble code either

Nov 04, 2009 | 1996 Dodge Caravan

1 Answer

1989 gmc c2500 service code ''43''


When you replaced the ESC did you disconnect the battery? If not then it is most likely that the vehicles ECM is still running in loop mode because it doesn't realize it has been changed. Clearing the codes, disconnecting the battery should do the trick.

Nov 11, 2008 | 1989 GMC Sierra

1 Answer

Obd1 trouble code


25) is mixture control continuously lean
42) is VSS circuit - vehicle speed sensor
43) is starter signal circuit
Good luck and I hope this answers your question. And remember to rate all the solutions that you get, thanx.

Oct 30, 2008 | 1995 Toyota Camry

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