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Quote:
Originally Posted by LarryWestKY
2000 t4r 3.4 rough idle, losing power, no vacuum leak, gas mileage is quickly dropping. I don't know how to post pictures of data. This is what it read
Calc Load
ECT
STFT B1 LTFT B1
Eng RPM
22.7 %
189 (°F
-08 %
258 %
713
Stft was -0.8
Ltft was -25.8
WTH is wrong?
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I can't quiet grasp your data posted but p0171 is an unmetered air and lean code. Clean or replace your maf if you don't have a vacuum leak. It could also be related to fuel pressure which would mean, fuel filter, fuel pump (test the resistance) or very seldom fpr
edit: iF the air fliter is dirty replace that too..