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Discussion Starter · #1 ·
i have a code 43 in my z6 and its driving me crazy...it boggs all the time and my air fuel ratio is lean all the way it bad...im not sure if its a dirty injector or oxygen sensor...anyone ever had one of these help me out please!!
 

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Discussion Starter · #7 ·
41 is the o2 sensor code 43 says something like left fuel supply but it also says check the o2 sensor....well im about to take off the fuel rail and see whats goin on inside the injectors ill let you guys know
 

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Discussion Starter · #10 ·
no i got it now...when i was driving today it started doin in again so i pulled over to check what the hell what wrong...on the distributor cap in one of the hole where the plugs go, was full of white stuff looked liked battery acid type shit so i went home i chaged the cap and wires now runs good like a champ thanks again everyone for the help and ideas

GReeko
 

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crx and ford ranger
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not a problem oopps i got my codes mixed up damn sorry bro i was kinda close i hade the same problem on my EG hatch idk why i didnt think to tell yuo to check the dizzy glad you got it fixed though hope it does you good
 

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damn..i have that same problem too and still am...code 43...i change fuel filter and used fuel injector cleaner as well...i dont know wasup...so your saying that it gotz to be the disc cap?...i haven't check that yet...and yes 43 is fuel system supply...so far i was thinking if it was the fuel pressure or regulator...so help me out..
 

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41 Primary oxygen sensor heater
43 Fuel supply system
45 Fuel system too rich or lean
48 LAF - lean air fuel sensor
 

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43 is fuel supply, but it doesnt mean something is wrong with the components, the o2 is probably sending false signals to the ecu to dump alot of fuel or no fuel at all, there for causing this code, well at least that was the explanation i got...

didnt believe them and changed out the fuel pump, fuel filter, fuel injectors and still nothing, then put in a new o2 sensor and its been gone since....mpg is really good now too, i get almost 300 to a full tank...before, i use to only get about 150-180 per full tank...
 
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