1994 GMC Safari "43 o2" Questions

43 going on. Temp guage quit working after it over heated. Read haynes manual to change o2 sensor and can't locate where to change it along with IAC and whatever the Vaccum Leak PCV is Can you help me

43 hi there HO2S BANK 1 SENSOR 3 HEATER CIRCUIT LOW . this jiberish means that its an upstream preheated oxygen switch it may need to be replaced or one of the wires could be damaged take a look there

...43. If replacing the o2 sensor did not help code 43 to disappear, next thing is to replace your fuel filter. A clogged fuel filter will also trip code 43. Next up, did you install an aftermarket Fuel ...

...the O2 sensor and see what happens. Make sure to erase the code when you replace the O2 sensor. Hope helps with this (rated this help) Good luck. CODE 43 - PROBLEM IN O2 SENSOR CIRCUIT OR FUEL

...what is it.what is the fix. code 43 is for a bad oxygen sensor. sensor located on a-pipe. K42282's answer is wrong. 41 is for O2 sensor, 43 is for fuel supply system. You might have low fuel

88 olds cutlass 2.8 liter code 43 engine runs poorly Code 43 means rich I think, so could be Coolant temp sensor, O2 sensor, leaky injector(s), tune-up items, other.

...43. Had o2 sensor, crank sensors, knock sensor and knock sensor connector replaced. Replaced ecm. Still getting 43 code. Check for corrosion and ground issues. DO NOT keep replacing items. Codes only ...

...43-52-55 can you tell me what they are?.....thanks 0052 is an O2 sensor, 0012 is camshaft position, 0043 is heater control unit, and 0055 is heater resistance. And I will give you a web site you can ...

O2 Sensor is what this is telling you) 43- HO2S Heater Control Circuit Low (Bank 1 Sensor 3) 55- HO2S Heater Resistance (Bank 1, Sensor 3) All of those assume they are supposed to be preceded by a P00

...43 has different meanings.It has to do with the knock sensor, electronic spark timing failure, left O2 sensor failure, and equate code 42a. Ithink that has to do with ignition switch failure. Good ...