Loss of power!?
Veetec
09-01-2003, 11:04 AM
Iīve got a serious problem with my y2k Prelude since a few weeks:
Sometimes it lags when accelerating in 1. and 2. gear between 1.500-3.000rpm. Even when I floor it nothing happens till about 3.000rpm when it seems to pick up the "power" again!
And I have got the feeling that it doesnīt accelerate as fast in general as about a month ago. When I floor it in 3. gear at about 5.000rpm it still feels slow for example.
Iīve checked so far:
- spark plugs
- cat
- K&N replacement filter (cleaned and oiled)
- clutch
- oil (seems to be really dirty and will be changed tomorrow!!)
- no uncommon noises or anything like that
- most of the visible cables etc. in the engine bay
Does anybody has got an idea what could be wrong??? I really donīt know what to do! :shakehead
Thanx in advance and I hope you understand my problem!?! (I am very tired today! :disappoin )
Sometimes it lags when accelerating in 1. and 2. gear between 1.500-3.000rpm. Even when I floor it nothing happens till about 3.000rpm when it seems to pick up the "power" again!
And I have got the feeling that it doesnīt accelerate as fast in general as about a month ago. When I floor it in 3. gear at about 5.000rpm it still feels slow for example.
Iīve checked so far:
- spark plugs
- cat
- K&N replacement filter (cleaned and oiled)
- clutch
- oil (seems to be really dirty and will be changed tomorrow!!)
- no uncommon noises or anything like that
- most of the visible cables etc. in the engine bay
Does anybody has got an idea what could be wrong??? I really donīt know what to do! :shakehead
Thanx in advance and I hope you understand my problem!?! (I am very tired today! :disappoin )
twally
09-01-2003, 01:00 PM
check your fuel filter, if the center screen is broken when you give it gas it can move to the back of the filter and plug the hole, happened with my eclipse last spring, quick cheap fix
bambam2000
09-01-2003, 11:27 PM
check you Distributor thats probably it
Veetec
09-06-2003, 05:32 AM
@twally: My fuel filter is fine according to my mech. I did an oilchange this tuesday and the lag seems to be gone or not really noticeable anymore. But the acceleration still seems to be too slow IMO. Topspeed is the same as always though...
@bambam: I havenīt checked the distributor yet because Iīm very busy in the moment. But if it would be the distributor wouldnīt the car start worser than before or make any uncommon noises?? I once had a broken distributor on my old Prelude BB3 and when I wanted to start the car it always made some "squeeking" noise and didnīt want to start immediately.
@bambam: I havenīt checked the distributor yet because Iīm very busy in the moment. But if it would be the distributor wouldnīt the car start worser than before or make any uncommon noises?? I once had a broken distributor on my old Prelude BB3 and when I wanted to start the car it always made some "squeeking" noise and didnīt want to start immediately.
bambam2000
09-06-2003, 02:45 PM
well the reson why I mentioned that is because I had the same problem and I cheked everything and when I opened the distribuitor cap 1/4 of the magnet was just laying there and the bottom, I replaced it and i got my power back.
Prelewd
09-08-2003, 01:08 AM
@twally: My fuel filter is fine according to my mech. I did an oilchange this tuesday and the lag seems to be gone or not really noticeable anymore. But the acceleration still seems to be too slow IMO. Topspeed is the same as always though...
What kind of oil filter were you using? I know this probably wasn't the problem, but if your filter was blocking oil flow, you could have been putting quite a bit of stress on your engine. I wouldn't let a fram filter get within 4 feet of my car from the things I've heard about them. Their paper is shit, and their cans are weak, not to mention the lack of QC at their manufacturing plants.
What kind of oil filter were you using? I know this probably wasn't the problem, but if your filter was blocking oil flow, you could have been putting quite a bit of stress on your engine. I wouldn't let a fram filter get within 4 feet of my car from the things I've heard about them. Their paper is shit, and their cans are weak, not to mention the lack of QC at their manufacturing plants.
Veetec
09-08-2003, 06:47 AM
What kind of oil filter were you using? I know this probably wasn't the problem, but if your filter was blocking oil flow, you could have been putting quite a bit of stress on your engine. I wouldn't let a fram filter get within 4 feet of my car from the things I've heard about them. Their paper is shit, and their cans are weak, not to mention the lack of QC at their manufacturing plants.
I donīt know because it was done by a mechanic. The bill says "W814/ 80 oilfilterpat. Honda" so I would guess it is the right one.
I donīt think that anything serious is broke in my car because some days ago I drove on our Autobahn and my topspeed is still the same as ever! Only the acceleration is worser than before...
I donīt know because it was done by a mechanic. The bill says "W814/ 80 oilfilterpat. Honda" so I would guess it is the right one.
I donīt think that anything serious is broke in my car because some days ago I drove on our Autobahn and my topspeed is still the same as ever! Only the acceleration is worser than before...
twally
09-08-2003, 08:21 AM
I said "Fuel Filter" not "Oil Filter" :sly:
Veetec
09-08-2003, 09:38 AM
I said "Fuel Filter" not "Oil Filter" :sly: And I was quoting Prelewd and his suggestion about the oil filter!
;-)
;-)
Prelewd
09-08-2003, 03:07 PM
I donīt know because it was done by a mechanic. The bill says "W814/ 80 oilfilterpat. Honda" so I would guess it is the right one.
...
You have a Mann Hummel oil filter.
...
You have a Mann Hummel oil filter.
Veetec
09-09-2003, 06:07 AM
You have a Mann Hummel oil filter. Is that good or bad??
johnnyboy5
09-10-2003, 04:53 PM
Yo dude try checking ur fuel injectors. Thats what happened to my car, but i havent had time to fix/clean em yet.
Prelewd
09-11-2003, 02:46 AM
Is that good or bad??
Don't know, never heard of them.. I just looked up your part # online.
Don't know, never heard of them.. I just looked up your part # online.
VDubb
09-13-2003, 03:04 AM
Check the www.ntpog.org website for the OBD workaround. You can also try reseting your ecu - either disconnect the neg. battery for ten min. or so, or just pull the Radio Fuse(7.5) for a few minutes.
The workaround doesn't let the ecu remember your codes, and negates the gradual decrease in power due to the ECU adjusting for your mods (more air, fuel, etc.).
The workaround doesn't let the ecu remember your codes, and negates the gradual decrease in power due to the ECU adjusting for your mods (more air, fuel, etc.).
Veetec
09-13-2003, 12:34 PM
Check the www.ntpog.org website for the OBD workaround. You can also try reseting your ecu - either disconnect the neg. battery for ten min. or so, or just pull the Radio Fuse(7.5) for a few minutes.
The workaround doesn't let the ecu remember your codes, and negates the gradual decrease in power due to the ECU adjusting for your mods (more air, fuel, etc.). I already know this site and I have already reseted the ECU two times. No difference at all. But thanx for your help! :wink:
I visited my local Honda dealer three days ago and the master mechanic (We have got "common" and "master" mechanics here in germany!) was back from his vacation. He checked my complete engine bay once again and drove the car for about 15 minutes. In his opinion the problem is caused by my K&N drop-in filter (cleaned it about two or three weeks ago) because he had the feeling that the car gets too much air and loses torque in the lower rpm in the moment. What do you think about that?? I have already used different filter types on my older Hondas (K&N drop-in and DC short ram) and never had a similar problems...
The workaround doesn't let the ecu remember your codes, and negates the gradual decrease in power due to the ECU adjusting for your mods (more air, fuel, etc.). I already know this site and I have already reseted the ECU two times. No difference at all. But thanx for your help! :wink:
I visited my local Honda dealer three days ago and the master mechanic (We have got "common" and "master" mechanics here in germany!) was back from his vacation. He checked my complete engine bay once again and drove the car for about 15 minutes. In his opinion the problem is caused by my K&N drop-in filter (cleaned it about two or three weeks ago) because he had the feeling that the car gets too much air and loses torque in the lower rpm in the moment. What do you think about that?? I have already used different filter types on my older Hondas (K&N drop-in and DC short ram) and never had a similar problems...
Prelewd
09-14-2003, 12:22 PM
I already know this site and I have already reseted the ECU two times. No difference at all. But thanx for your help! :wink:
I visited my local Honda dealer three days ago and the master mechanic (We have got "common" and "master" mechanics here in germany!) was back from his vacation. He checked my complete engine bay once again and drove the car for about 15 minutes. In his opinion the problem is caused by my K&N drop-in filter (cleaned it about two or three weeks ago) because he had the feeling that the car gets too much air and loses torque in the lower rpm in the moment. What do you think about that?? I have already used different filter types on my older Hondas (K&N drop-in and DC short ram) and never had a similar problems...
Maybe, being a master mechanic, he knows something we don't, but everytime I've heard anybody add air to their equation, they get more power.. Especially when you force the air in.. like a turbo?
He might be referencing your OBDII, and it's ability to override simple mods like an air filter. You cleaned it about 2-3 weeks ago, then your car ran better, and now you OBDII is compensating for it finally? Just a theory.
How much drop in power are you talking about?
Keep us posted.
I visited my local Honda dealer three days ago and the master mechanic (We have got "common" and "master" mechanics here in germany!) was back from his vacation. He checked my complete engine bay once again and drove the car for about 15 minutes. In his opinion the problem is caused by my K&N drop-in filter (cleaned it about two or three weeks ago) because he had the feeling that the car gets too much air and loses torque in the lower rpm in the moment. What do you think about that?? I have already used different filter types on my older Hondas (K&N drop-in and DC short ram) and never had a similar problems...
Maybe, being a master mechanic, he knows something we don't, but everytime I've heard anybody add air to their equation, they get more power.. Especially when you force the air in.. like a turbo?
He might be referencing your OBDII, and it's ability to override simple mods like an air filter. You cleaned it about 2-3 weeks ago, then your car ran better, and now you OBDII is compensating for it finally? Just a theory.
How much drop in power are you talking about?
Keep us posted.
Veetec
09-14-2003, 01:35 PM
Maybe, being a master mechanic, he knows something we don't, but everytime I've heard anybody add air to their equation, they get more power.. Especially when you force the air in.. like a turbo?
He might be referencing your OBDII, and it's ability to override simple mods like an air filter. You cleaned it about 2-3 weeks ago, then your car ran better, and now you OBDII is compensating for it finally? Just a theory.
How much drop in power are you talking about?
Keep us posted. A "master mechanic" is nothing special over here and every garage has to have at least one of them. They just know a bit more about cars than the "common mechanics"...
I believe I somewhat wrongly expressed myself! He hasnīt said that the power in the lower rpm is really lost but it has been moved to a higher rpm like when using an AEM CAI. He also said that this is because the engine doesnīt get enough fuel to take an advantage out of the "better air flow".
The weird thing is that I have got the feeling that it is becoming better the more I drive it! The lag in first an second gear seems to be completely gone and my acceleration doesnīt seem to be as slow anymore as it was a week ago. Really confusing... :eek7:
He might be referencing your OBDII, and it's ability to override simple mods like an air filter. You cleaned it about 2-3 weeks ago, then your car ran better, and now you OBDII is compensating for it finally? Just a theory.
How much drop in power are you talking about?
Keep us posted. A "master mechanic" is nothing special over here and every garage has to have at least one of them. They just know a bit more about cars than the "common mechanics"...
I believe I somewhat wrongly expressed myself! He hasnīt said that the power in the lower rpm is really lost but it has been moved to a higher rpm like when using an AEM CAI. He also said that this is because the engine doesnīt get enough fuel to take an advantage out of the "better air flow".
The weird thing is that I have got the feeling that it is becoming better the more I drive it! The lag in first an second gear seems to be completely gone and my acceleration doesnīt seem to be as slow anymore as it was a week ago. Really confusing... :eek7:
92acuraattack
09-17-2003, 11:17 PM
the problem could be that your valves are not opening enough until higher rpm and are causing a lag. That would explain why your top speed is fine and the lower end is non existent
just a thought: but all the others are possible too
use factory oil filter an replace the fuel filter no matter what the mechanic said
an also loss of power because of too much air is a bunch of crap :grinyes: more air = more power it just sounds like your engine cant use it for some reason
just a thought: but all the others are possible too
use factory oil filter an replace the fuel filter no matter what the mechanic said
an also loss of power because of too much air is a bunch of crap :grinyes: more air = more power it just sounds like your engine cant use it for some reason
Prelewd
09-18-2003, 12:48 AM
Just a tank of bad gas?
Veetec
09-18-2003, 05:36 AM
the problem could be that your valves are not opening enough until higher rpm and are causing a lag. That would explain why your top speed is fine and the lower end is non existent
just a thought: but all the others are possible too
use factory oil filter an replace the fuel filter no matter what the mechanic said
an also loss of power because of too much air is a bunch of crap :grinyes: more air = more power it just sounds like your engine cant use it for some reason
Like I said the problem is becoming better and better the more I drive the car...thatīs my feeling at least!
I had a look on the website of "Mann Hummel" (brand of my current oil filter) and to me it seems that they know what they are doing (They offer a wide range of industrial, automotive and other filters!) so I guess Iīll keep the filter till the next oil change.
"More air = more power"....thatīs definitely true but only to a certain degree!
However....like I have already said it seems to become better every day so maybe my engine just had a "bad mood" or anything like that!? :wink:
So thanx a lot for all the ideas and Iīll let you know if the problem should return! :cool:
just a thought: but all the others are possible too
use factory oil filter an replace the fuel filter no matter what the mechanic said
an also loss of power because of too much air is a bunch of crap :grinyes: more air = more power it just sounds like your engine cant use it for some reason
Like I said the problem is becoming better and better the more I drive the car...thatīs my feeling at least!
I had a look on the website of "Mann Hummel" (brand of my current oil filter) and to me it seems that they know what they are doing (They offer a wide range of industrial, automotive and other filters!) so I guess Iīll keep the filter till the next oil change.
"More air = more power"....thatīs definitely true but only to a certain degree!
However....like I have already said it seems to become better every day so maybe my engine just had a "bad mood" or anything like that!? :wink:
So thanx a lot for all the ideas and Iīll let you know if the problem should return! :cool:
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