Moriarty581
NAXJA Forum User
- Location
- Maine
I have a slightly modified 89 XJ 5 spd and had been getting 18 to 19 mpg. then overnight i experianced decreased gas mileage and EGR valve failure. On a long trip. I plugged the EGR and replaced the MAP Sensor and O2 Sensor, but the gas mileage did not increase. Could my O2 sensor have burned out due to not having the ERG Valve in place? I have been told that this could happen. Also it dosent seem to have the power that it used to. I put Bocsh Plugs an wires in about 3 months ago and checked the rotor it looked fine. so bacicly i am at a loss as to why the old girl is sucking gas and loseing power.