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help!!!!!!!!!!

 
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Old 10-27-2007, 06:35 AM
Ben Ben is offline
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help!!!!!!!!!!

I own a Prelude 1997 2.2 vtec.The car is running too lean as the plugs are white and has hesitant acceleration between 75 - 85 mph.The bonus is the i'm getting around 30 miles more fuel consumption on a full tank,but i just want to get it sorted .The plugs have been changed and the air filter but there is no difference in performance .Thinking fuel filter, fuel pump ,oxy sensor ?????Any ideas guys ?
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Old 10-27-2007, 06:45 AM
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Try disconnecting your battery for a while and re connecting it to reset the computer. Do you have any check engine lights on or service vehicle lights? If so I would drive the car to your local Auto Zone or Advanced Auto. Have them run a diagnostic test to see what the check engine light is on for. It is most likely one of your oxygen sensors but to make sure have them check it first they are rather $$$$.
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Old 10-27-2007, 01:34 PM
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Thanks Rob i'll give that a go.
There are no warning lights on just the slight hesitant acceleration with a little vibration through the steering wheel and general car when going through the 75 - 85 zone .The problem is not as noticable in 4th gear just 5th.
The timing belt was changed around the time and i thought the timing may have been slightly misadjusted and causing the problem but all other speeds the car runs perfect so i wrote that thought out.
Anyway i will try the battery before it goes into Honda to carry out a diagnostic test to try and find out why my plugs are white !!!! expensive !!!

Ta
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Old 10-27-2007, 04:21 PM
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Now who did your timing belt? Did you throw a belt or changed it out before it failed?

Also too make sure you change your water pump along with a timing belt change.

You may have the belt off by one cog. I'm not too sure if there is much or any adjustment on the timing. That would explain alot if it is. Valves being open for too long and burning up your plugs.

Do you get any valve rattle?
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Old 10-27-2007, 07:03 PM
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na no valve rattle
But the belt was changed by an independant garage along with the tensioner .When i had it back there was a dull squeeling noise when the cam belt was running on hot idle.Anyway to cut a long one short i took it to honda for cam belt refit.The car recently failed a Lambda test at MOT stage and a new back box was fitted as ther was some blow in the exhaust.( Could a lot of the problems be coincidental ? ) Anyway after passing MOT i am still with the problem and am torn with the idea of it either being a oxy sensor , possible fuel blockage but i could rule out the oxy sensor as there are no warning lights and i guess my idle speed is not a problem .I believe the fuel pump and filter are good for around 100K? The car has 83K on the clock with the last 40K being half hour intervals on motorways.The fuel consumption is up around 40 mpg per tank of fuel which makes me believe that the timing may have been set to run slightly lean if this is possible ??? Or perhaps i need a new tensioner and water pump fitted which would be bigger than small bucks ??
Thanks for you advice any suggestions greatly accepted

By the way what your car like ?
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Old 10-27-2007, 07:24 PM
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Check out this chart and read the overheated portion:

http://www.verrill.com/moto/sellingg...colorchart.htm
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Old 10-27-2007, 07:25 PM
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Quote:
Originally Posted by Ben View Post
...The fuel consumption is up around 40 mpg per tank of fuel which makes me believe that the timing may have been set to run slightly lean if this is possible ???


40 MPG's...WOW that's bordering Hybrid-car MPGs!!!
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Old 10-27-2007, 07:40 PM
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Yea i meant 40 miles extra per tank as instead of 250 i'm doing 290.Still with the rising fuel prices this may be a small price to pay
What damage would this do to the car running too lean as the only problem is between 75 - 85 and i can get around this by driving in 4th ??
Any idea what a reasonable price for a belt tensioner and water pump would be a main dealer ?? Would i be better getting them to check the Co and timing first or just jumping straight in and biting the bullet

Thanks again for the advice
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Old 10-27-2007, 07:46 PM
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OH...i was about to say...40 MPG's lol!

...not too sure about the UK prices on the water pump and a belt tensioner...i'd assume it would be expensive. You can contact our resident Honda parts dealer, Honda4life(Mike) and get a quote from him on these parts...PM him and ask.

I would get your timing checked firstly before biting any sort of bullets...i thought guns were outlawed in the UK?
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Old 10-28-2007, 06:59 AM
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Quote:
Originally Posted by Ben View Post

By the way what your car like ?
I drive a 97 Honda Prelude S now, I have not had it that long, so I haven't gone through it very good yet. I have some exhaust work I need to get done. (It's too loud, has some type of N1 cat back system on it) I'm not too sure but I think that I am getting about 25 mpg around town and about 30 something on the highway. I'll know better once I stop again next time to fill up, that will give me an average. I've been running the same tank of gas for about three weeks now. So I'm pretty happy with the fuel mileage that I am getting.
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Old 10-28-2007, 08:41 AM
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Just tried the battery disconnection to reset the management system and the cars seems to running fine again.Will run it again later and see if the fault does not reoccur.Fingers crossed my beloved car is back to its fighting best.
Thanks guys for all the advice will let you know the progress
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Old 10-28-2007, 08:53 AM
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Hope that was all it was. Enjoy
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Old 10-29-2007, 03:18 PM
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Na its back again.Gutted as i thought that could have done the trick.
Well i suppose i have no choice but to take it in for a diagnostic and hope that something shows up !!
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Old 11-04-2007, 05:17 PM
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Just to let you know had diagnostic and timing checked but everything showed up no problem.All Honda suggested was to try running the car on super plus fuel.If anyone has any suggestions pls let me know
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