Question about 2001 Hyundai Santa Fe
What should i be looking at to cause the code? also when is the long term fuel trim used?
I'm not quite sure about the code in Hyundai's case but it definitely relates to fuel trim...
I could try to hash down the explanation for Short term fuel trim and Long term fuel trim in this post but I think a visit to
would be more thorough and appropriate.
Basically, a high value of long term fuel trim indicates that your engine has had and will have to continue to inject a lot more or a lot less fuel to attain the correct air/fuel ratio for a proper burn, which mainly indicates a malfunction somewhere (could be lots of things)
Posted on Aug 27, 2008
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Posted on Jan 02, 2017
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Fuel Trim Too Lean
The current cell can be observed using a scan tool.The system will go lean if an injector is not providing enough fuel.A lean condition could be present during high fuel demand due to a fuel pump not pumping enough fuel, plugged fuel filter or a restricted fuel line.Insufficient fuel in the tank or low fuel pressure may cause this DTC to set. Refer to Fuel System Diagnosis .Review the Failure Records with a scan tool. If an intermittent condition is suspected, refer to Intermittent Conditions .
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