CEL #43, Fuel supply system... Causes?
09-19-2004, 12:46 AM
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CEL #43, Fuel supply system... Causes?
have 3 codes.
#16, Fuel injectors
#41, o2 heater core
#43, fuel supply system
#41 is no problem, i have like 10 o2 censors
#16.... ok, replace the fuel injectors. i can do that.
#43... what else can be causing this code besides the injectors? maybe the fuel filter? or the fuel pump?
#16, Fuel injectors
#41, o2 heater core
#43, fuel supply system
#41 is no problem, i have like 10 o2 censors
#16.... ok, replace the fuel injectors. i can do that.
#43... what else can be causing this code besides the injectors? maybe the fuel filter? or the fuel pump?
09-20-2004, 06:55 AM
#2
Re: CEL #43, Fuel supply system... Causes? (Simple)
Fix the others & see whether 43 comes back. If so then it could be FPR or other things...
It's a kind of catch-all code, where all the other sensors & operating conditions don't add up right. Error 16 means an injector isn't right. (But maybe it's the wiring instead of the injector itself?)
Now with a flaky injector, the ECU has to adjust fuel in order to keep the O2 sensor happy. Whatever's going on, it's having a hard time doing that, so it throws code 43. There's a chance it'll go away when you fix the injector/circuit.
It's a kind of catch-all code, where all the other sensors & operating conditions don't add up right. Error 16 means an injector isn't right. (But maybe it's the wiring instead of the injector itself?)
Now with a flaky injector, the ECU has to adjust fuel in order to keep the O2 sensor happy. Whatever's going on, it's having a hard time doing that, so it throws code 43. There's a chance it'll go away when you fix the injector/circuit.
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