Hey guys...new member here,so tell me if I do anything wrong..LOL
OK..I have a 1994 540I that I purchased in 1995...I parked it at 70K for 10 years..long story.Anyway,I just drained the fuel and put new fuel pump in...wouldnt run right,but my mechanic found the wire on the sensor broke off,so he fixed that,and car runs like a dream....sorry I kept it on block all these years....I've logged about 1,000 miles on it..and been noticing the fuel gauge doesnt seem to like to go much past the halfway mark...at first didnt think much of it,but made sure I filled up when it hit halfway....SO...today,driving home,had a longer trip and figuring its a 21 gallon tank I'm good for 350 miles at least....well at 285 miles (which is like 13MPG),the car all of a sudden starts to sputter and slow down..run,sputter,slow down..and CHECK ENGINE light comes on...first thing I figure is Damn,gas gauge doesnt work and running out of gas...lucky for me gas station was 1/4 down road and I made it there..pulled in..car idles fine...so I fill it up,and on my way I go..drive the next 20 miles home fine....I've been using Regular grade gas since I got it back on road...So my question is,finally...could it of started because engine isnt liking the low grade...or is the fuel sensor/gauge really bad....13MPG is crazy since I remember getting like 20....When I fueled up,checked the engine..all was fine,oil OK,not overheating....Does the Check Engine light come on if you run out of fuel....there was no other warning and I thought the panel should of said LOW FUEL before getting to the point of empty...OR could it be some fuel sensor....? Hate to bring back to mechanic at $100 per hour for him to say,its OK,and shut the check engine light off....
HELP...& THANKS
OK..I have a 1994 540I that I purchased in 1995...I parked it at 70K for 10 years..long story.Anyway,I just drained the fuel and put new fuel pump in...wouldnt run right,but my mechanic found the wire on the sensor broke off,so he fixed that,and car runs like a dream....sorry I kept it on block all these years....I've logged about 1,000 miles on it..and been noticing the fuel gauge doesnt seem to like to go much past the halfway mark...at first didnt think much of it,but made sure I filled up when it hit halfway....SO...today,driving home,had a longer trip and figuring its a 21 gallon tank I'm good for 350 miles at least....well at 285 miles (which is like 13MPG),the car all of a sudden starts to sputter and slow down..run,sputter,slow down..and CHECK ENGINE light comes on...first thing I figure is Damn,gas gauge doesnt work and running out of gas...lucky for me gas station was 1/4 down road and I made it there..pulled in..car idles fine...so I fill it up,and on my way I go..drive the next 20 miles home fine....I've been using Regular grade gas since I got it back on road...So my question is,finally...could it of started because engine isnt liking the low grade...or is the fuel sensor/gauge really bad....13MPG is crazy since I remember getting like 20....When I fueled up,checked the engine..all was fine,oil OK,not overheating....Does the Check Engine light come on if you run out of fuel....there was no other warning and I thought the panel should of said LOW FUEL before getting to the point of empty...OR could it be some fuel sensor....? Hate to bring back to mechanic at $100 per hour for him to say,its OK,and shut the check engine light off....
HELP...& THANKS