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90 Prelude si wont start after sitting a day or more

 
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Old 09-13-2007, 09:10 PM
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90 Prelude si wont start after sitting a day or more

I have a 90 prelude si b21 a1 engine i have had it about a year and put about 20,000 miles on it right now it has about 135,000mi.

I guess ill start from the beginning. anyone who has had a honda hopefully can understand what i am about to type. when i normally start the car. its like i know when to let off cranking before it even starts just used to my car and how to start it . its like i am trained .

it would always start fine. granted i drove the car every single day. well a few weeks ago it began to either barely start with the normal amount of time like run rough for the first few seconds then stall or continue to run.

Most recently i have noticed that if i leave the car for over 1 or 2 days it wont start for a while. i will just crank it and crank it and crank it until it starts sometimes for up to 5 minutes. thenit will start and run just fine. until the next time it sits a few days.

Im not sure when this started but as i said earlier i drove the car everyday up until recently when i lost my job. so i am not sure if this is a problenm thats been there and i never noticed because i drove it everyday or its something new that just occurred.

So far i have recently replaced the fuel filter the air filter and the spark plugs. None of those items made any differewnce at all. I am wondering if there is an air leak in the fuel line . thinking maybe the fuel bleeds back into the tank when the car is not running. I knda thought this because when i changed the fuel filter it seemed there was no pressure or gas shooting out when i removed the bleeder screw. i dont know if that was normal or not.

I also have a check engine light on but that has been on since the day i purchased it. and i have had no problems with inspections or anything. I was told something like the code refers to something related with the distributor but there is a backup in the distributor ir something so it wasnt necessary to change it. not sure if that is bs or makes any sense at all.

i tried to determine the code myself but im not sure i understand how to read the blinks. to me it seems like 4 long red leds then a quick red blink. I am just looking for some suggestions to make this thing run right thanks for your help and i hope . It makes just a litttle sense
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Old 09-13-2007, 09:17 PM
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4 long blinks and 1 short 1 is o2 sensor: How to check 'Check Engine Light' codes on a 3rd Gen This shouldn't effect your start problem.

Try this diagnoses:

Turn the key to the "on" position...dont crank the car. LISTEN: do you hear a HISS and CLICK? You should hear that, that's the fuel relay, or main relay.

Check your battery, starter and grounding. It could very well be a main relay problem.

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Old 09-13-2007, 09:22 PM
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mine has same prob previous owner said it was a main fuelinjector relay
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Old 09-13-2007, 10:28 PM
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I have done soem research before posting . what i read about the main relay it that it is a heat issue so i have not looked at it. If it could be when its cool also i guess let me know . and i will look at it also im not sure where it is located so that would help too. i can inspect it and resolder or replace it if it is necessary

Ok yes i believ it is 4 long blinks and 1 short one . you think i will get better gas mileage and run better with a new o2 sensor ?? How much do they cost ? any recomendations on where to get one . Also yes i believ i hear the hiss you are talking about when the ignition is turned to on not cranking . i also hear a click but im not sure if its the one you are talking about . it clicks when the lights in the cluster turns off after desating them all
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Old 09-14-2007, 01:46 AM
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the injector realy only acts up when the interior get really hot does perfect in cool weather
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Old 09-14-2007, 10:07 AM
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if by injector relay you mean the main relay that most people say is a problem when they are hot. i understand.

basically after sitting a feew days it does not start until i crank it over for an undetermined amount of time.

when i changed my feul filter should it have been under trmendous pressure. i drove from the parts store then cracked the bleeder and it barely dribbled out. i was especting a bit more. Anyone else having the same problem . is there anywhere the fuel line might be worn and maybe is letting air in ? maybe there is another explaination im not sure .
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Old 09-14-2007, 10:53 AM
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hows ur fuel pump? and lines?
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Old 09-14-2007, 11:02 AM
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the car runs fine besides not starting after sitting a few days. so I am assuming the fuel pump is fine. Im not sure if the lines are ok or not. I am wondering if a cracked line is allowing air into the line causing the fuel to bleed back to the tank,. Or maybe its just something else which is why i am online asking bto see if anyone has any suggestions. the lines look good under the hood
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Old 09-14-2007, 12:45 PM
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hmmm maybe a lose wire? some where
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Old 09-15-2007, 11:29 AM
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Quote:
Originally Posted by Prelude13 View Post

Check your battery, starter and grounding. It could very well be a main relay problem.


If the main relay is old and worn, it'll give you troubles whether or not it's baking inside the car or not...
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Old 12-27-2013, 04:11 PM
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Re: 90 Prelude si wont start after sitting a day or more

where is the starter grounding? uber noob here.
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Old 12-27-2013, 07:22 PM
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Re: 90 Prelude si wont start after sitting a day or more

Re-soldering the main relay is practically free maintenance and will give you a real quick answer. Think all you need is a screwdriver and a 10 mm socket.
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Old 12-27-2013, 08:18 PM
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Re: 90 Prelude si wont start after sitting a day or more

Quote:
Originally Posted by uwotm8 View Post
where is the starter grounding? uber noob here.

Here ya go uber-newber...

http://www.1funryd.com/hondapreludemanual1988.pdf
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