[Euro] Reasons for power loss

hopefully its not the fuel , i only use bp ultimate 98 octane.

yfin, weather conditions were quite cool when i started noticing the loss in power (even on winter nights below 10 degrees it felt the same). I've felt the difference between a muggy hot day and cold crisp day and its not that coz its just crap all the time haha...

i really hope its not the ecu... how are you meant to reset that thing?

virIIx i was really hoping the 20k km service would fix the problem but :thumbdwn:

No one thinks it could be a fualty master cylinder? coz when accelrating i get the feeling the clutch isnt fully engaged - like having the clutch ever so slightly depressed and accelrating...

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Originally Posted by EuroAccord13

A dirty filter will indeed cut performance to a vehicle and it's noticable Tobster :)

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I take your point and I agree -- what I meant was that on a regularly serviced car that's only done 19000 km, I think it's unlikely (unless you've been driving through desert sand storms or such) that the filter is going to be cause here... :D

If it was the clutch (which it might be), surely you'd notice it throughout the rev range, not just over 3000?

The engine otherwise is running normally? Presumably the head and gasket are fine... If it's been serviced the injectors should be fine...

Presumably nothing has stuffed up on the mufflers and the exhaust isn't partially blocked?

Chris F: what is your fuel consumption like lately? if it is unrealistically high, then something definitely wrong.

not sure how to reset and ecu in a euro but on any other honda car its an easy 10 min job. does anyone know if a euro is any different?

Tobster, i doubt its the air filter too but i haven't checked it yet, so i'm not completely ruling it out.

the faulty MC may be affecting power throughout the rev range... but its hard to tell with the euro because around 3k rpm and under is fairly sluggish usually. (might be why i dont notice it so much).

PNR88, i havent been doing a lot of driving (have been avoiding driving untill i get the new MC so i cant really say)

h22a, i've never heard how to do it either... anyone?

electronics are so complex in cars these days... if the stereo place stuffed something minor up when it came to wiring etc. my euro might be a dud for life :( - itd be nearly impossible to find the root of the problem.

i really hope its the Master cylinder... does anyone know if a faulty mastercylinder (by not enganging/disengaging clutch 100% properly) can cause some form of power loss?

Engine oil overfill?

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Originally Posted by h22a accord

not sure how to reset and ecu in a euro but on any other honda car its an easy 10 min job. does anyone know if a euro is any different?

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Someone told me to reset the ECU you just disconnect the battery for 10 or so minutes.

I seriously doubt there is something wrong with your ECU. I have seen such varied performance from the Euro - whether it be oil, air filters, temperature, petrol, etc.

Vacuuming the air filter like Euroaccord13 said is probably the first thing you should try. Don't assume the dealers give it a good check. Mine was really dirty at 20,000kms and it has been in for service from Honda since new so I doubt they even gave it a shake to get the surface debris off.

okay thanks yfin... i'll be sure to check that out (air filter).

i had a chat to nEUROtic and he seems to be experiencing the same problem.

we've kinda arrived at the conclusion that the MC is at fault.

i did a test on a very very slight incline, put it in first, clutch hard against the wall and the car remained stationary (not rolling back) and then started to move foward slgihtly.

the loss of power im talkin about is more than likely from the clutch not being engaged properly (my clutch felt spongey/different - and then i noticed power loss).

In theory i may have been riding the clutch for a good 20,000km :rolleyes: yay

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Originally Posted by Chris_F

the loss of power im talkin about is more than likely from the clutch not being engaged properly (my clutch felt spongey/different - and then i noticed power loss).

In theory i may have been riding the clutch for a good 20,000km :rolleyes: yay

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Chris: I reseted my ECU after installing my aftermarket air filter and Remus exhaust. I was told (with my car, not an EURO) to either discnnect battery for a few min or to unplug the ECU fuse for a few min(this method u wont have to reset ur radio stations)

Have u check ur PM I sent u regarding to this Sunday's IS cruise?
tata
Steven SSML

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Originally Posted by V205

Engine oil overfill?

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that is a very good point!!! or may be too low !

I'm getting my MC replaced tommorrow... so i'll give an update after that... in some ways i hope it is the MC and in some ways i hope its not (talk about clutch wear).

Does anyone know if honda released a new design for the MC? - this will be my third one :rolleyes: (second replacement)

Well, i've got the car back...

I still haven't taken it for a good drive yet, but it seems as though replacing the master cylinder has given me back some missing power.

I spoke to the service manager and he said they took it for a test drive before and after and that the mechanic noticed a similar sensation of power loss to what i did; the car fealt as though the clutch wasn't properly engaged when it was fully released and trying to accelerate.

The clutch feels noticeably weaker than when i first got the car now though and less bitey... probably because ive done 20,000km - the majority of which was on faulty MC's.

Hopefully the car is back to normal for a while now :p

edit:
Forgot to mention that the steering also feels different (back to "normal") - really quite strange but im guessing driving around with a clutch not properly engaged will make the car drive fairly differently ?