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Car dies after supercharger removal

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Old Feb 21, 2009 | 04:49 AM
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Default Car dies after supercharger removal

So I took off my supercharger. Replaced everything but the spark plugs. I'm using my stock intake with a filter at the end. Whenever I start my car, it dies like 2 seconds later. It seems as if there's a major vac leak somewhere, but I checked everything and I can't pinpoint where it is.

Any suggestions??
Old Feb 21, 2009 | 04:52 AM
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still running with the reflash? or did you replace the ecu, i think thats your problem right there!
Old Feb 21, 2009 | 05:02 AM
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I replaced the ECU lol. Running my stock ECU! The car starts up okay but dies almost instantly. There's a giant whiff of air noise coming from the throttle body area..
Old Feb 21, 2009 | 05:18 AM
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it just misses boost man! lol alll i can think of is the ecu but you said you are running the stock one... maf messed up? idk man
Old Feb 21, 2009 | 05:52 AM
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you sure you set up the ecu right? from what i remember its not just a plug and play affair.
Old Feb 21, 2009 | 05:56 AM
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the spark plugs COULD be a problem, considering their 1 step colder
Old Feb 21, 2009 | 06:04 AM
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i think the ecu has to be reprogramed to the engine immoblizer chip in the key doesn't it?
Old Feb 21, 2009 | 06:12 AM
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Try cleaning throttle body plate, low idle. After replacing ecu or battery, all learn values return to default. Remember our throttle bodies also have learning values once carbon build up accumulates, throttle will adjust for lack of air flow (no more ISC Valve) In addition, once it returns to default throttle plate will stick with carbon build up and stall engine
Old Feb 21, 2009 | 06:17 AM
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well most new cars have a seperate immobilizer ecu. but just last month i also replace my ecm and didn't need to reprogram. im also boosting
Old Feb 21, 2009 | 06:29 AM
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Originally Posted by draxcaliber
i think the ecu has to be reprogramed to the engine immoblizer chip in the key doesn't it?
I am pretty sure that is the "key" right there, unless he had his trd reflashed ECU reflashed back to stock.
Old Feb 21, 2009 | 06:54 AM
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Originally Posted by equinox2355
Originally Posted by draxcaliber
i think the ecu has to be reprogramed to the engine immoblizer chip in the key doesn't it?
I am pretty sure that is the "key" right there, unless he had his trd reflashed ECU reflashed back to stock.
the ecu once flashed can not be unflashed... so hes deff not running his stock one.
Old Feb 21, 2009 | 07:05 AM
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Yes my ECU has already been relearned lol. I pinned up both terminals for an hour. If it were the engine immobilizer, it wouldnt let me rev it. It would just keep choking. Trust me, I started the car NA with the SC ECU just to see what it would do lol.
Old Feb 21, 2009 | 11:57 AM
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so you tried to unflash your sc ecu your self?
Old Feb 21, 2009 | 01:13 PM
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You said you changed everything but the spark plugs.

Just verifying. Put the stock injectors back on?
Old Feb 21, 2009 | 03:15 PM
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Originally Posted by unxpectederror
Originally Posted by equinox2355
Originally Posted by draxcaliber
i think the ecu has to be reprogramed to the engine immoblizer chip in the key doesn't it?
I am pretty sure that is the "key" right there, unless he had his trd reflashed ECU reflashed back to stock.
the ecu once flashed can not be unflashed... so hes deff not running his stock one.
The ECU can be un-reflashed a number of people have done it. I believe there is a decent write-up somewhere. Unless I am totally remembering seeing a post that doesnt exist. Which i could be doing LOL
Old Feb 21, 2009 | 03:52 PM
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Originally Posted by ippskidder
You said you changed everything but the spark plugs.

Just verifying. Put the stock injectors back on?
Correct. It might be the intake but i'm not sure. It's the stock intake hose with a filter at the end and the little black box that fills one of the holes on the intake.
Old Feb 21, 2009 | 03:55 PM
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Are you local in LA , I may be able to swing bye . And check it with my scanner
Old Feb 21, 2009 | 04:03 PM
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I'm in elk grove/sacramento
Old Feb 21, 2009 | 04:10 PM
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Originally Posted by unxpectederror
Originally Posted by equinox2355
Originally Posted by draxcaliber
i think the ecu has to be reprogramed to the engine immoblizer chip in the key doesn't it?
I am pretty sure that is the "key" right there, unless he had his trd reflashed ECU reflashed back to stock.
the ecu once flashed can not be unflashed... so hes deff not running his stock one.
That is not true, I have seen it reflashed to stock.
Old Feb 21, 2009 | 06:25 PM
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Just found out what it was! The 4th injector wasn't seated correctly! Funny thing is, it didn't spray any fuel on my block so I couldn't tell. Thanks guys for the help!



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