NowForThe5th wrote:Hope it's fixed for you.
How good are those V6's? This must be about the third time that anyone's had an error code on an ML V6. I had just two in 5 years - one when the ABS unit self destructed and one when the apprentice filled the spark plug recess with water. Engine still ran, with just an occasional hiccup.
dwhylan wrote:This is from the manual:
P0125* Feedback system Oxygen sensor not operating, engine warning lamp ON.
•Failed oxygen sensor (front)
•Harness damage in oxygen sensor (front) circuit or loose connector contact
•Failed oxygen sensor (rear)
Newtron wrote:Hi there,
New member here chasing some sage advise. My 2007 3.5 V6 ML Triton is producing a P0125 (Insufficient Coolant Temperature for Closed Loop Fuel Control) error code. It appears to occur on longer runs at about 40 minute mark. On shorter drives it doesn't appear and will actually clear its self after a few cycles of shorter trips. Triton seems to run fine when Check Engine Light (CEL) is on.
I've ordered a new Engine Coolant Temp (ECT) sensor and hope this will be the solution. Anyone else experienced this and better still found a solution?
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