'vert flooding out & won't run!!

[honeybus]

The 240SX '94 auto convertible won't run. It will start, but so much fuel is being poured through the system that it floods out after 5 seconds.

I parked the convertible with the top down. I then saw that it might rain, so I turned the key on and put the top and the windows up.

I FORGOT to turn the key OFF!!!!

It ran the battery down. I could get it started after I waited a 15 minutes for some life to come back to the battery, but I was only able to drive it 5 miles before I had to pull into a shopping center and call for a tow.

What would be the cause for this unregulated flow of fuel I am now experiencing if the ignition key was left on for 2 hours??

Thanks, fellow convertible owners.

[le_ryan]

low battery charge not creating enough voltage to the spark plug .... ?just a guess, but sounds reasonable.ive seen batteries go bad after a complete drain .. check your voltage with a multi meter,

[Eikon]

sorry to hear of your troubles..

I'd take the battery to an auto parts store and have them charge and test the battery to make sure it's still good.

I can't think of any reason that leaving your key on would harm your fuel system. You might want to pull your fuel injectors and inspect them. Get new o-rings for each and make sure the pintle caps are still in good condition.

If your flooding... perhaps it's not your fuel system pumping in too much, but rather, you are not getting enough air? Make sure your air filter is not clogged and your auxiliary air controller is clean and working properly.

I can't think of anything else to tell you for now..

Let us know what you come up with and we'll keep working on it from there.

Good luck!

[honeybus]

low battery charge not creating enough voltage to the spark plug .... ?just a guess, but sounds reasonable.ive seen batteries go bad after a complete drain .. check your voltage with a multi meter,

Thanks for popping in, vroom-chirp.

Thursday, at the service station, when the mechanic was trying to get it going, he used a brand new battery because mine lost its charge. When I came bach a few hours later, he had another brand new battery (I saw him pulling the shrink wrap off the posts. He chuckled to me that he sold the 'new' battery he was using just an hour before!!

Probably not the battery ? ? ? Also, I recently replaced the alternator, so I imagine it might not be this problem, still, it is an idea to double check. The new batteries he was using was just jumpered to my existing installed 'dead' battery, and not a full replacement. Again, still this was enough to crank the engine for the needed 10 seconds to get the engine to fire off and run for just another 5 seconds before it died!! I saw this at least ten times while I was standing over him...

Barry

[honeybus]

sorry to hear of your troubles.. (1) You might want to pull your fuel injectors and inspect them. Get new o-rings for each and make sure the pintle caps are still in good condition.

(2) If your flooding... perhaps it's not your fuel system pumping in too much, but rather, you are not getting enough air? Make sure your air filter is not clogged and your auxiliary air controller is clean and working properly.

Eikon, you are making some real sense. (1) When I replace one of the FIs, the replacement was used, and it did not have a pintle cap. Mechanic 'Choi' did the replacement, and he pulled the pintle cap off the bad FI to put on the used replacement.

In doing this, he had to break the pintle cap!! He kind of got it together when he installed the used replacement!!

But would ONE bad FI be causing so much of a flooding??

(2) On the 'auxiliary air controller', I guess I will have to go back to the FSM to see what that is and what it looks like.

Thanks all...

[ishkabibble]

I recently replaced the alternator, so I imagine it might not be this problem, still, it is an idea to double check. The new batteries he was using was just jumpered to my existing installed 'dead' battery, and not a full replacement.

It's a good idea to replace the battery with a new one when an alternator dies (unless the battery is nearly new). A bad alternator usually kills a battery in short order because the charging system is constantly switching between alternator power and battery power. Discharging the battery with the key in the ignition might have been the thing that finally did your battery in.

Costco sells high quality (Kirkland brand, but they are made by some big OEM) batteries for around $50 if you have a membership. If you don't have a membership, you might want to consider getting one since it's a good value and there's one in your city.

The combination of weak battery and damaged injector might be the source of the problem. You could be losing spark while spraying too much fuel into a cylinder.

You might want to consider getting rebuilt injectors. They are around $200 for a set, and usually are built so they can handle ethanol fuel, unlike the ones that came with the car. I think ethanol is common in VA (at least I've seen it when I've stopped for gas there).

I'm not sure where you normally get your car worked on, but I usually go to "Cho's Auto" in Old Town Gaithersburg for anything not-240SX-specific that I can't do myself. They only work on imports and never jerked me around.

Nice meeting ya, wish I could've seen your vert, though! Oh, here is the place in NJ that does AT to MT swaps: http://www.powerzamcam.com/services/

[94_240sx]

But would ONE bad FI be causing so much of a flooding??

Because of o-rings. There are 2 o-rings, small at the bottom and large on top. They must be replaced. If you reuse them, they look okay first but, get smashed or torn when they go in. If the small is bad, too much fuel will get in car runs terrible. It's a very common mistake that people make. If you didn't replace o-rings, I would pull out FI and replace o-rings first and see what happens.