99 Mitsubishi Eclipse Lean Fuel code
For the last 3 months my eclipse will randomly take about 10-20 minutes to start. Sometimes when it does start it will idle at about 500 RPMs and if I give it gas it will die automatically. In that situation the gas smell is so bad I have to get out of the car.
If I stop any time and wait for about 10 seconds the car will sometimes die, in which case I throw it in to neutral and the idle jumps to about 750 and doesn’t die.
I took the car in to a friends shop and he tried to run diagnostics on it since the check engine light finally came on. His diagnostic machine couldn’t find anything so they took it to a Mitsu dealer to have them run it. Go figure they get a lean fuel code but the car starts right up for them every time they have tried it and it hasn’t died yet.
They are saying since it hasn’t died they don’t really have a place to start on trying to get it fixed. They are telling me to continue to drive it around until it “gets worse” but I don’t want to wait until it won’t start at all and have to get it towed all the way back to the shop.
So basically I am asking for suggestions here. The car has about 99k miles on it, is 2.0 liter NON turbo. It only gets about 22 miles to the gallon which is odd because it’s not modified in any way.
The car has a brand new air filter. Never had a tune up or timing belt allignment. It’s never had a new fuel filter or fuel pump. I’ve been in a rental for the last few days and can’t wait to get my car back. Hopefully you guys can give me a little helpful advice.
It is most likely a failed O2 sensor. A failed sensor will reduce your mpg and adverse affect on driveability.
What was the code they got? (P####?)
Even if the CEL went out, the code should still be stored..