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#4810923 - 06/10/10 08:35 AM Engine Floods
siman00 Offline
Newbie


Registered: 06/06/10
Posts: 2
Hello all. I've been away from the forum for quite a while, but have a problem that I hope someone has an answer for. Mine is a 2000 Si, 100% stock, with no modifications at all.

It has hsppened twice. After sitting in the driveway for a few days, I go to start the car as usual. The starter turns over, and the engine spins, but the engine does not catch.

The first time it happened, after grinding the starter for about 45 seconds, the engine catches, sputters, and tons of black smoke is visible in the rear view mirror. The engine was flooded.

The second time it happened, I ground and ground on the starter and nothing at all happened. It would not start. It sat in the driveway for another week and when I tried again, the starter ground for maybe 30 seconds, and the engine caught, again spewing black, rich smoke.

I know a fuel-injected engine should not flood, but mine has done it twice, so I know something is amiss.

I'm betting a solenoid somewhere in the fuel system is sticking open, allowing expanding gasoline is being forced into the cylinders. But I don't know where to start in looking for the culprit.

Does anyone have any knowledge they can share with a similar problem and it's fix?

Thanks in advance for whatever help you can give.

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#4811186 - 06/10/10 10:10 AM Re: Engine Floods [Re: siman00]
kyden Offline
Post Master Supreme


Registered: 12/20/99
Posts: 15410
Loc: Providence, RI
is it on a certain cylinder or is it on all cylinders? are you sure the engine's not just flooding from it cranking so long?
_________________________
<x> i had a weird dream <x> where i lived in an apartment complex <x> walked down the street, and kyden and a couple other dudes were living in an apartment and ran outside looking for the maintenance people <x> and something about taking a shit in a sealed toilet

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#4812216 - 06/10/10 03:49 PM Re: Engine Floods [Re: kyden]
sexypants Offline
Post Master


Registered: 04/24/01
Posts: 2826
Have you changed your plugs/wires? They could be going bad and not getting the required energy for a good spark.
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#4815967 - 06/11/10 08:28 PM Re: Engine Floods [Re: sexypants]
siman00 Offline
Newbie


Registered: 06/06/10
Posts: 2
I don't think that it is a case of a cylinder or two not firing properly. Nor do I think it's a case of bad wires; other than these two times, the car has fired as soon as the key is turned virtually thousands of times over the past 10 years (bought new; now with 153,000 miles). It runs flawlessly and strongly.

Given the symptoms of not starting immediately and huge cloud of black smoke (which always signifies a very rich mixture), I'm almost certain raw fuel is getting into the cylinders. But I don't know how or where to look for something that is allowing this to happen.

I appreciate the feedback given so far; does anyone else have any ideas???

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#4819375 - 06/14/10 01:05 AM Re: Engine Floods [Re: siman00]
4doorEG Offline
Post Master Sr


Registered: 11/23/01
Posts: 6113
Loc: Overland Park, KS
Addressing how the "tune up" of the vehicle is would be a start.

Also, next time it floods, don't just sit there and hammer on the starter. Stop after about 20 seconds and pull the plugs. See if all cylinders are indeed flooded with fuel or if there are only a certain few that are.

lots of causes. I'd say the main ones are:
1) bad tune up parts
2) stuck FPR
3) weak rings or low compression
4) stuck injectors
5) believe it or not, I've seen a bad ecu cause this. 1 rare case, but it did.

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