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HI my names jennifer and my mother's own my deceased fathers 2000 honda insight. My mother has been taking really good care of it, but for the last year there's been some problems. we got the ami battery replaced and the oil changed. but the mpg has gone down so low that it's at 30mpg's. I took it back to the honda dealer and they cant find anything wrong with it. I'm hoping that somebody here might be able to help me out by telling me whats the problem so i can get it fixed for her. She loves this car very much. I do have a feeling that the machanics at the honda dealer really dont know what there doing. PLease help if any?
 

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Check the tire pressures, they may have lowered them to honda specified levels at the dealership as part of what they do when a car comes under their care. Chances are the original owner kept them maintained at much higher pressures to maintain good fuel economy and honda reset them when the ima battery was replaced. Check tire pressures regularly and maybe try 50psi or 60psi for starts if your road conditions justify this an see if the mileage increases. This pressure is higher than Honda authorizes but mileage will accrue.
Welcome & Enjoy your Insight!
 

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Need more information, mainly is it a manual or CVT, miles on the vehicle, and where are you located. Terrain and weather will also have a large effect on your mpg.
Maybe someone close by can help.

Willie
 

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Also check to make sure the dealer didn't overfill the oil.
 

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I think that the biggest question is what is a typical drive? 40 miles on the interstate, 2 miles in bumper to bumper traffic, etc. I bought my 2001 just over a year ago with a lifetime average of 19 mpg. The lowest I have ever got was a 59.5 mpg tank. The first owner lived in the city and I believe only had a 3 mile commute to work.

How many miles are on the car, and what is the lifetime mpg? The odometer will show both of these at the same time.

Does she leave the climate control in auto or Econ?
 

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To my knowledge the 2000 only came in manual transmission...so that question should be answered.

Some questions on the mileage:

Has she changed her driving style? Does she drive faster now than she used to? More traffic?

With that low of gas mileage I would look towards cleaning the EGR valve and EGR plate, since it is a 2000 and it probably has never been done. The mechanic should have been able to see that. This is a REALLY quick fix and shouldn't take more than $50 on gaskets and a night to soak the valve. Don't bring it to the mechanic for this, you can do this at home easily. There are many threads about it, including a few with pictures showing how to do it.
 

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Possibly the Catalytic converter is clogging up. My mileage went from 65 down to 35 when it happened to me.

Also, a CV joint that is dragging can cause a huge drop.
 

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With that low of gas mileage I would look towards cleaning the EGR valve and EGR plate, since it is a 2000 and it probably has never been done.
I don't believe dirty EGR can cause a significant MPG drop. But you're right. it's a relatively simple fix for peace of mind and resolving herky-jerky conditions.

Possibly the Catalytic converter is clogging up. My mileage went from 65 down to 35 when it happened to me.

Also, a CV joint that is dragging can cause a huge drop.
^ +1 If this is a car with odo reading above 100,000 miles, I think this is a real good possibility.

Redinsight2010: How many miles on the car now? Does it have the Bridgestone Potenza RE 92 tires on it?
 

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Mpg

Its my first time, to ask a question, I bought Insight 2000 model with 153000 miles on it, have put 4000 miles more on it, without any major problem, but i have the same problem of low mileage,48 mpg, wish to do 70-80 mpg, where to find EGR valve and the plate in the car,catalytic converter is v dirty, any good place to buy? How about installing the grid charger to charge up battery? any driving techniques to improve mpg? I have changed spark plug twice and replaced # 3 coil too, it didn't help, Any suggestions? please help.
 

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Thank you for such a quick response, appreciated. Tires are Bridgestone, P165/65 R14. You seems to know more, please share your ideas to help me increase mpg, Thanks again
Christian
 

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Terrain and weather will have a direct impact on your mpg also.
Inflate the tires to at least 40 PSI.
Please put your location in your profile/details/location.

Thanks
Enjoy the family.

HTH
Willie
 

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Discussion Starter #13
Thank to replying, but no her driving hasn't changed. the mileage 120*** and i changed the tire pressure but only went up to 36mpg. Sorry i dont know what an egr valve and plate are.
 

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Thank to replying, but no her driving hasn't changed. the mileage 120*** and i changed the tire pressure but only went up to 36mpg. Sorry i dont know what an egr valve and plate are.
 

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Thank to replying, but no her driving hasn't changed. the mileage 120*** and i changed the tire pressure but only went up to 36mpg. Sorry i dont know what an egr valve and plate are.
Jennifer,

Ok. EGR plate: So you can either (1.) come to my house and I can show you,or (2.) take it to a mechanic and ask them to show you, or (3.) do a search on this site. :)

I have a sneaking suspicion that your mom's Battery Control Module and Engine Control Unit were both replaced with the battery at the dealer, which may account for some drop in MPG because of the way the charging is now more aggressive.

Have you checked the oil level like Larry recommended? Dealers usually overfill.

Also check the under body spoiler panels. make sure they are in place.
 

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Its my first time, to ask a question, I bought Insight 2000 model with 153000 miles on it, have put 4000 miles more on it, without any major problem, but i have the same problem of low mileage,48 mpg, wish to do 70-80 mpg, where to find EGR valve and the plate in the car,catalytic converter is v dirty, any good place to buy? How about installing the grid charger to charge up battery? any driving techniques to improve mpg? I have changed spark plug twice and replaced # 3 coil too, it didn't help, Any suggestions? please help.
Chamida,

What's the Lifetime Average MPG of the car?
Any OBD codes? Check your underbody panels. Are they there? Aired up tires? Oil is not overfilled? The brakes aren't dragging are they? Did you put the CORRECT (A,B, or C) plugs in the engine? You said the CAT converter was very dirty. How was this diagnosed? If you need a replacement, I would recommend Majestic Honda Parts in RI. Just google them.
But aside from all that, the biggest factor for increasing MPGs is right behind the wheel. Describe your typical commute. Elevation, speed, distances. There are some special techniques you can learn which would help you increase the efficiency. Search for Pulse and glide. And there are some discussions on shifting techniques too. Also, make sure your A/C is off (look in owners manual to be sure you understand the HVAC operation 100%.
The 2000 Insight EPA rating is 49 mpg City and 61 Hiway according to the new calculation. See: Compare Old and New Estimates
Grid charger is to help condition the battery...it's daily use to increase mpg is controversial.
Just wondering what makes you think you should be getting 70 or 80 mpgs? Have you driven another one before and have gotten those numbers? Do you know someone who is getting those numbers? In these winter temperatures? Do some more search on this site and then set yourself some realistic goals. (Whatever those numbers may be.)
Looking forward to hearing your answers to all these questions.
 

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Thanks

Terrain and weather will have a direct impact on your mpg also.
Inflate the tires to at least 40 PSI.
Please put your location in your profile/details/location.

Thanks
Enjoy the family.

HTH
Willie
Dear Willie, Appreciated your fast reply, I will raise them to 40, will watch and let you know, i reallly like this site, believe i will find answers here. i have updated my profile fast after your suggestion, thank you.
 

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Dear Freezin4, I appreciated v much for your reply, still waiting to collect all the answers!, will reply soon, again Thank you
Chamida
 

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HI my names jennifer and my mother's own my deceased fathers 2000 honda insight. My mother has been taking really good care of it, but for the last year there's been some problems. we got the ami battery replaced and the oil changed. but the mpg has gone down so low that it's at 30mpg's. I took it back to the honda dealer and they cant find anything wrong with it. I'm hoping that somebody here might be able to help me out by telling me whats the problem so i can get it fixed for her. She loves this car very much. I do have a feeling that the machanics at the honda dealer really dont know what there doing. PLease help if any?
What's an ami battery? Does it stand for Assist, Motor Integrated?
It's obviously not throwing any codes if the dealer can't find any issues with it, so you need to first check on how its being driven. No matter how I drive my tired old Insight, I've never, ever, ever once gotten less than 50mpg on any single trip with it - I could be flooring it up a hill at 85mph and still get better than that - so make sure that basic rules are being followed. furthermore, check the wheel alignment. Hit any bad potholes lately? Screwed up alignment can really mess up your MPGs, especially in a finely-tuned concept car like the Insight. Get a status on common things like the fuel filter, spark plugs, motor oil, and transmission fluid. Also, be watchful for things like using air conditioning or the heater when the car isn't yet fully warmed up; that will really hurt your fuel economy, increase the amount of battery you use and result in more forced charging. Tire pressure has already been mentioned; are you running Bridgestone RE92 tires on the car? Those are the only tires you can run on the Insight to get good fuel economy. And how is the 12v battery? Is it in good shape, or is the IMA battery charging it all the time? Find out by getting it load tested at an AutoZone.
 
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