I officially hate my prius and toyota

Really with that low of mileage it sounds like it isn't even getting out of stage 1. Again a CAN sniffer would be helpful here to actually see the fuel use.

 

Warranties are useless 99% of the time. Why people bother I'll never know.

Go to the dealer and get a reflash. Then tell us how it goes. Don't ask if they can diagnose, just tell them to reflash your engine ecu and your hv ecu.

 

Both of those suck. Can you please confirm this that I asked before?

It's still 25 km per direction of a given trip and it's 50% city and 50% highway? For the highway portion, I mean actual highway speeds as in 80+ km/h and not stop and go.

Also, from the questionnaire (yes, I know you replaced you battery, but that doesn't mean it's not a dud):
What is the voltage reading of your 12v battery after sitting over night? (Method Here)

I'm doubtful about your Pilot claims since per Best & worst cars review, fuel-efficient vehicles, CR got 18 mpg overall (12 city/26 highway) and they're not towing trailers during those tests.

Totally disagree. On my Prius and previous cars, I've gotten rattles fixed, recall work done, TSBs and warranty repairs done (such as the squealing CHS pump, 2 failed power window motors on my Z, replacement front tires and alignment for the infamous Z front tire feathering problem, axle click TSB on my Z, a leaking valve cover gasket replaced on my Z) and so on...

 

I just walked around, as I have P2010. I think the only chance to find the reason why the ICE is running is to take the dealer's technician aboard, connect Techstream to OBDII port and monitor/grab the major variables which have something to do with the ICE start/stop.

 

I can understand your anger and disappointment with the stealership, but am at a loss, after reading this whole thread, at your attitude towards those on here, trying to help.

 

Of course you don't see it, but every one else does.

 

Brook, I agree with double checking your 12 volt but I'd also double check it's installed correctly. When I changed my 12v I didn't put the terminals on correctly and it resulted in the ICE running alot more often and the HV battery always was recharging, but the car ran and of course there were no codes. I was averaging less than 20 mpg. I took it into the stealership and found out I made a mistake with the install.

 

What was the nature of your install error, Ryan?

 

He's on edge. He has a problem that's costing him hundreds of dollars and feels that his dealership and Toyota have been unhelpful.

You have responded emotionally to something you could simply ignore. Please don't post in this thread any more unless you have helpful technical information.

 

One of the terminals were upside down and they weren't tight enough. That was a $100.00 lesson to check and triple check my work since I am a card carrying noob with repairs.

 

Define "perfect". You haven't answered my questions in http://priuschat.com/forums/gen-ii-...ally-hate-my-prius-toyota-11.html#post1262014 which includes a check of the voltage after sitting overnight.

It doesn't seem this was suggested yet (and wouldn't have anything to do w/your ICE running too much) but have you engaged and then released your parking brake, just for kicks? We commonly speculate a sticking parking brake...

 

I find it less likely that you forgot to release the parking brake than it somehow sticking, which might not be resolved by applying and releasing it. But, it's free and worth a shot.

As for brand new deep cycle battery, let's rule it out as being a problem by actually measuring instead of assuming.

This is what the questionnaire and followup questions I and others have asked are trying to do: rule out problems.

Please do go back and answer those followup questions of mine. If you told me that your trips are now 5 km each way or your 25 km commute is actually mostly stop and go and consists of powering up and down the car many times w/stops in between, we'd need to re-evaluate your mileage and whether it's "poor".

 

I totally agree. My Toyota (standard and extended) warranty has been totally useless, it seems like the dealerships don't even want to look at my car from my (repeated) complaints (I have a window that's acting up now).

Just curious - I'm assuming you got the alignment checked? My suspicion of your issues is still based on the fact that you had water in the back of your car (although I am not a mechanic).

 

I'm sorry, but while I don't believe that it fully explains the change in MPG, I find it difficult to believe that your driving patterns haven't changed at all. There may be multiple issues contributing to your change in MPG. Some of them may very well be because of repairable failures of equipment in the Prius. Others may be due to changes in driving patterns. As I said in an earlier post in this thread:

Of course some of my figures are only extrapolations and estimates based on the model year of the vehicle and the limited information you have supplied regarding odometer readings and driving habits. It is entirely possible that you bought the 2007 new in December of 2007 and that you have only 62,500kms now. In that case all of my assumptions about driving patterns are obviously incorrect.