terrible gas mileage

Post by **HijackTheLeft** » Thu Jul 21, 2005 5:22 am

When I first bought my car, it averaged 26 mpg. It was fine for a while, but it seems like the last couple months or so I'm getting terrible gas mileage. Since my last fillup, I've used a little over half a tank and only went about 100 miles. I'm not using the a/c, I'm not driving any differently, and I've always used the same 93 octane gas. What could be causing this?!?!

Post by **navysnail** » Thu Jul 21, 2005 5:33 am

is the car running rich (black smoke out the exhaust)?

Post by **HijackTheLeft** » Thu Jul 21, 2005 5:42 am

nope.... everything seems fine.

Post by **jpsc** » Thu Jul 21, 2005 9:51 pm

I had similar problems - then fail CA smog check.After about $1000 diagnostic and fixing at the dealership - it turns out to be a PVC valve needs to be replace.

So change your 240SX PVC and put in a new Oxygen sensor.

Post by **HijackTheLeft** » Fri Jul 22, 2005 11:21 am

heh i didnt even think of that. lol... will do.

Post by **MiniR34** » Mon Jul 25, 2005 6:23 am

jpsc wrote:I had similar problems - then fail CA smog check.After about $1000 diagnostic and fixing at the dealership - it turns out to be a PVC valve needs to be replace.

So change your 240SX PVC and put in a new Oxygen sensor.

You mean PCV (positive crankcase ventilation) valve right?

terrible gas mileage

terrible gas mileage

Re: (navysnail)

Re: (HijackTheLeft)

Re: (jpsc)

Re: (jpsc)

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