Good evening,
I've got an '89 240 automatic with 166k on it. It gets terrible MPG. For example, today I put 5.5 gallons in and after 50 miles on the highway (60-65 MPH) it was down in the red again.
CEL is on and the code is 1-1-3 so I ordered a new O2 sensor.. (That's what that code means right?) The car runs and idles great..
What else would cause 1-1-3 and any suggestions for getting the MPG up a bit?
Spark plugs, wires, fuel filter, etc only have about 20k on them..
Any help is appreciated! Thank you!
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