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ECU Brain Dead? Car not turning on for some reason

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Old 01-02-2010, 02:01 PM
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ECU Brain Dead? Car not turning on for some reason

My car has sat in the garage for the past 4 days because I was waiting on a part and couldn't drive it (Oil feed line to td04 started leaking). I drove the car into the garage and it was fine.

The part is back on the car, but now the car won't start. I tried resetting the ECU or changing the map with the Accessport, but it can't connect to the ECU for some reason (with or without green connectors connected)

also, the Check Engine light flashes on and off briefly like there is a bad connection, like a flickering light rather than a serious engine problem

The car cranks fine, but won't fire. The fuel pump doesnt prime or anything when I turn the key, just all the electronics work

Not really sure what is going on here, I didn't touch anything electrical during the fix

someone help me out here please
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Old 01-02-2010, 06:01 PM
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Kind of sounds almost like a vehicle security system problem, did the battery happen to die while it sat for those four days?
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Old 01-02-2010, 06:16 PM
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check all your fuses?i remember i had a sbf fuse blow on me while i was in pleasonton... it was a grounded maf wire... check that maybe
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Old 01-02-2010, 07:30 PM
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Try another key.
You have the OEM security system with chipped key, correct?
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Old 01-02-2010, 08:49 PM
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Originally Posted by jam007
Kind of sounds almost like a vehicle security system problem, did the battery happen to die while it sat for those four days?
The car has had a full charge this whole time, I haven't needed to charge the battery at all since it sat

Originally Posted by xhengmanx
check all your fuses?i remember i had a sbf fuse blow on me while i was in pleasonton... it was a grounded maf wire... check that maybe
I did that a bit earlier and I didn't find any blown fuses. I'll search around for a ground just in case

Originally Posted by Paul@dbtuned
Try another key.
You have the OEM security system with chipped key, correct?
Unfortunately I only have one key. The key blank cost me 60 bucks and then the programming was a bit more, I didnt really want to buy another as a spare :/
I have the OEM security system and this is a key from Subaru that was programmed by GST.
If it was a security issue, wouldn't the car run for a few seconds then shut off? That's what I heard what would happen if something was bad there

Its weird, I mean the car doesnt even try to turn on; All i can do is run accessories off the battery
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Old 01-02-2010, 09:25 PM
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nvm car not really working

Last edited by salvator_rizzo; 01-02-2010 at 10:10 PM.
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Old 01-02-2010, 10:10 PM
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Additional Info, Same problem:

So the car turned on, ran, but it didnt sound very good. Idled around 1300 RPM's. It would chug when I gave it gas and then resume back at that 1300 rpm.

The idle is relatively rough, definitely doesn't feel normal
Then after about 3 minutes of this idling, the car cut back out and I'm back at square 1
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Old 01-03-2010, 08:23 PM
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Pull the engine harness plug, check for corrosion or any funny business.

Is the CEL on when you had the car sortof running?
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Old 01-03-2010, 10:25 PM
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So I think what the problem was is that the Throttle position sensor had some water in there or something. I sprayed it out with electrical cleaner and the car seemed to work just fine after a little while. kind of weird I'm going to drive the car just to make sure but it seems to be functioning normally now
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