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Car Forum / Acura Cars / May 200410 - 15 Miles to the Gallon on 98 Integra LS ! How ...?
You read right. That is what my Integra LS is getting right now. It's been getting the most severe and worst gas mileage the last 2 weeks. Driving 30 miles dropped by gas tank level by a third. My car is completely stock and has an automatic transmission with 77K on the clock. I drive my car reasonably well and have taken care of it, but my mileage and performance have both been dessimated. The car has been idling rougher when in drive. The car starts and runs normally with no problem, the mileage is just horrible. Any ideas or clues on why this would be happening and how I can fix it ? I previously posted about a gassy smell coming from my car, could this possibly be fuel not burning properly ? I was going to go in for a tune up and see what happens, but my car has recently had it's timing belt,water pump replaced,and PCV Valve replaced. Where should I be looking for these trouble signs ? What should I look out for when taking it the mechanic ? Would a clogged catalytic converter do this ? Could this be a problem with fuel/air mixture not combusting ? What about a fuel pump system problem ? This is frustrating me immensly especially with these gas prices. I hope someone can please help me with reclaiming my lost engine power and gas mileage. Many Thanks ! In order, I'd be concerned about: 1. the catalytic converter and/or oxygen sensor. 2. whether all cylinders were firing. Check or replace plugs and wires on all; maybe distributor cap and rotor, too. 3. clogged fuel filter (unless the 98 Integra has one of those fuel filters in the gas tank). clogged air filter. Only 1 above is expensive. Items 2 and 3 may be checked/fixed by a person reasonably handy with tools and having a half-decent shop manual > You read right. That is what my Integra LS is getting right now. It's > been getting the most severe and worst gas mileage the last 2 weeks. [quoted text clipped - 22 lines] > hope someone can please help me with reclaiming my lost engine power > and gas mileage. Many Thanks ! > You read right. That is what my Integra LS is getting right now. It's > been getting the most severe and worst gas mileage the last 2 weeks. [quoted text clipped - 22 lines] > hope someone can please help me with reclaiming my lost engine power > and gas mileage. Many Thanks ! ====================== LS, When did you last do a 'lamp test' on your dash indicators? I'd bet your car is trying to tell you something, but the light is burned out. Actually, the first thing that came to mind was teenagers borrowing your car, or your gas . . . :-) A plugged fuel filter won't mess up your mileage, just you ability to pass or climb hills. Burnt valves or serious misfire should be showing up on the dash, as would a plugged catalytic converter. If your timing belt is out one tooth, your mileage will suffer, but the performance would be terrible when the engine is still warming up. You would have felt it trying to backfire when you tried to speed up. Have you done visual inspections of your air filter and your coolant levels (both)? When did you last run a can of fuel injector cleaner thru it? Most of this stuff is all in your fine owner's manual. Reply to group. 'Curly' ========================== are you blowing mass amounts of white smoke? if not then i'd skip your list below. look into the leak or the rough idle, those might be clues. jay > You read right. That is what my Integra LS is getting right now. It's > been getting the most severe and worst gas mileage the last 2 weeks. [quoted text clipped - 22 lines] > hope someone can please help me with reclaiming my lost engine power > and gas mileage. Many Thanks ! On 5/20/04 11:59 PM, in article XeydnRdkd_itETDdRVn-gQ@comcast.com, "jay lorenzana" <lorenzana_j@comcast.net> wrote: > are you blowing mass amounts of white smoke? if not then i'd skip your list > below. look into the leak or the rough idle, those might be clues. [quoted text clipped - 27 lines] >> hope someone can please help me with reclaiming my lost engine power >> and gas mileage. Many Thanks ! There was a guy on the Nissan groups recently with a similar problem (except he was down to 2-3 mpg). It was an injector stuck open. > You read right. That is what my Integra LS is getting right now. It's > been getting the most severe and worst gas mileage the last 2 weeks. [quoted text clipped - 22 lines] > hope someone can please help me with reclaiming my lost engine power > and gas mileage. Many Thanks ! Probably a stuck injector or the timing belt was installed with the camshaft misaligned. I record mileage and gallons with each stop. Suddenly I noted the day after visiting a Mobil station, why mileage dropped from above 30 to about 20 MPG. Engine just was not smooth. Dealer said fuel injectors were bad. I know exactly the station that did the damage. Only helps to keep away from that station. With injectors replaced, I immediately noticed the smoother engine. And mileage immediately returned to above 30 MPG. Numbers. Verify important to keep numbers and also have those numbers for consecutive tanks. What could be the problem on that Integra? Many which is why we always identify good dealers so get the right answer the first time (and yes I also have identified at least one dealer who I don't trust - watched them blame the woman rather than fix their installed and leaking oil filter). IOW probably many things. But those numbers will tell when the problem happened and when it is fixed. > Probably a stuck injector or the timing belt was installed with > the camshaft misaligned.
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