Low Voltage Code Challenge
04-23-2013, 05:31 PM
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Staging Lane
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Low Voltage Code Challenge My SES light popped on and I pulled codes from my 2000 T/A (~71k miles).
Codes indicated low voltage on both sensors. In parallel, MPG in the city had dropped from an average of 15+ a few years ago to 12-13. This was a gradual drop that accelerated from 13 to 12 in the two weeks before the car threw the codes.
So I replaced them with new Bosch units 10 days ago and gas mileage picked up to ~14.5 MPG, but today the car threw out the same codes again. This appears to happen every time I accelerate on to the freeway.
The full data I am pulling from the freeze frame shows:
Ideas anyone?
Codes indicated low voltage on both sensors. In parallel, MPG in the city had dropped from an average of 15+ a few years ago to 12-13. This was a gradual drop that accelerated from 13 to 12 in the two weeks before the car threw the codes.
So I replaced them with new Bosch units 10 days ago and gas mileage picked up to ~14.5 MPG, but today the car threw out the same codes again. This appears to happen every time I accelerate on to the freeway.
The full data I am pulling from the freeze frame shows:
P0137
Fuel system 1
Engine coolant temp 93C
STFT Bank 1
Engine RPM 4635
Vehicle speed 54 KmPH
MAF Sensor 160.25 gm/s
Throttle position 78.4%
Looking for suggestions on the thing to check or replace next.Fuel system 1
Open loop - drive
Fuel system 2Open loop - drive
Calculated load 56.8%Engine coolant temp 93C
STFT Bank 1
-0.7%
LTFT Bank 18.5%
STFT Bank 2-0.7%
LTFT Bank 17.8%
Intake manifold pressure 95kPaAEngine RPM 4635
Vehicle speed 54 KmPH
MAF Sensor 160.25 gm/s
Throttle position 78.4%
Ideas anyone?
