Rudderpinne

Hey everyone new here obviously, I always embrace idea's from others who may have been there done that and I'm hoping someone can point me to the right idea.

2003 Civic hybrid, Automatic with the CVT 179k miles.

Some back story, the CVT started jumping or catching (best way to describe it) around 80k miles I think. Never thought anything of it.

I have replaced the battery pack three times now I believe.

Last time it was replaced was within a year. (Exact date can't remember) Anyway found a guy online who fixed them, so we did that. Well it died again and can't get a hold of him. I'll leave his name out to give him a chance to get back to me as I believe it was promised that it would last awhile (looking for paperwork).

Ok so the battery died 3 days ago...again.

Well I found a junked civic, got hit in the front end. So I bough the whole battery pack area (not sure of name).

So this time instead of replacing just the back I replaced the whole thing thinking it might be a issue with something else.

Well so far so good I believe it drains the battery like normal (if I can remember normal) then charges back up.



Now to the good parts.

I'm thinking the CVT catching could be messing with the charging system.

Also it dies at random times, like I'll be going slow ie. pulling out of the garage and it'll die. So I have to turn the key and start it again.

It also does the auto-stop thing without doing the auto-stop, it will drop to zero rpm's and shut off then one second later it will come back on, auto-stop does not light up and it'll do this as long as I let it.

I think I'm going to change the spark plugs see if that helps or not.


Anyway I'm open to all idea's, I'm really trying to get this thing to hit 200k!

Thanks in advance!! I'm pretty busy but will try to get back to any questions right away!

Feel like this sometimes lol

mikey1

my advice is to get rid of it before it costs you a fortune, its already 10 years old, and its at the point where your going to have to dump alot of money into it,

i hope you are aware how expensive the spark plugs are for that engine!

ezone

No. Charging is controlled through the IMA system DC-DC converter and others.
I can only think it might be trans related if the start clutch tries to engage with enough force to stall the engine.
Otherwise, no.
Is this more than just the typical "shudder on takeoff" they are well known for doing?

I guess so.
Need to see a datalist to see what the control units are thinking.

Done an idle relearn yet?

The other day I saw one hybrid CVT that rhythmically tried to engage like every 3 seconds while sitting still, foot on the brake. Absolutely acting wrong, but was not a complaint so was not checked further.
Suspect wrong fluid was used in the trans, because it did other wrong things.



Again, seriously doubt it.
FYI if you want to do them just for kicks, it uses 8 plugs @ $20 each (list price).
Use the correct plugs: SK16PR-L11 or 1FR5G-11K


I have a strong feeling you will need to see a dealer or specialist with the right scan equipment (and likely the ability to update powertrain and IMA software) to get the complaints resolved.

Rudderpinne

It does the shutter on take off but this is when I'm driving and let off the gas the transmission almost catches like. It'll go smooth and then jerk like it's catching...

No idea what datalist is sorry.

Have not done a relearn, how do I do that?

Do they charge to update the powertrain and IMA software?

Thanks for all your help so far!

ezone

If a scan check didn't reveal anything obvious, I might then try a trans service using the correct fluid...maybe 2 or 3 times.

(Of course, it depends on what I feel and think during a test drive and inspection.)
Wrong trans fluid can be the root cause of some seriously strange problems. Needs to be the correct Honda CVT fluid.

Live data from the control units in the car. So I can "see" what the control units are "thinking" and doing in real-time.

Average people can't make much use of the data without experience or instruction.
Cheapo engine code readers won't give this info either. Dedicated (high dollar) scanner is needed.
Search-fu: https://www.civicforums.com/forums/1...reset-ecu.html


Of course, you could Google "honda idle relearn"
Duh.
Some dealers charge a lot more than others too.

If you actually try to go this route, you need to disclose what battery work has already been done, directly to the technician that is doing the work. Trust me, the info is important to *me*, and can/will be ignored or screwed up if you tell/trust anyone else that isn't directly involved in the repair processes. Ever play that game called 'Telephone'? It's like that.
(Maybe I'm the only one that would even care though. IDK.)

Reason: There may be issues with correctly updating the software for your hybrid/IMA battery. Figuring out the correct software for the battery type will be difficult or impossible to get correct now that the pack has been (A) replaced without documentation, and (B) rebuilt with God-only-knows-what type of batteries.

EDIT:
Wait, you now have a whole unmolested battery pack?
Leave the back seat and battery covers out so the tech can find the battery type labels!!!!


YW. Please realize I can only make guesses based on what you type (and what *I* think you meant). I can't see or drive the car, nor can I plug my scanners in to your car to see what is really going on.

Some of the complaints you have just don't appear to be anything an end-user will fix by guessing and randomly replacing parts..... But sure, try the stuff you can do easily yourself.

HTH

Rudderpinne

Awesome thanks!

I'm going to contact my local dealer see how much they would charge to update the software.

Also yes I have a unmolested battery back, all original.

Ha didn't think about googling duh my bad.

ezone

Again, a software update alone probably isn't going to solve all of your problems.