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Scion tC 1G Forced Induction Turbo and supercharger applications...

Do I have to put stock injectors in if I have a stock ECU?

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Old 03-29-2007, 08:40 PM
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Default Do I have to put stock injectors in if I have a stock ECU?

I have the TRD 44cc Injector on my car because I just took off the SC. Can I run the 440's with a stock ECU?
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Old 03-29-2007, 09:01 PM
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you will prolly throw a rich code, seeing that there is less air without the sc. im sure u CAN run them but your car prolly wont run as strong with an impropper air/fuel mix.
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Old 03-29-2007, 11:29 PM
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No, your car will idle with a violent shake! Well at least it does with 550s. Trust me I know...
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Old 03-29-2007, 11:51 PM
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No, your car will idle with a violent shake! Well at least it does with 550s. Trust me I know...
I agree, it may not be as violent as the 550c's RSracer had due to the smaller size injectors, but it will have a violent and uneasy idle to say the least. Not a good idea to keep them on without the supercharger.
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Old 03-30-2007, 02:09 AM
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If you have a flashed ECU then yes you can run the 440cc injectors without the blower...but you have to keep the SC air-box that the MAF is mounted to.

If you replace the air-box to the stock model then you need to change out the ECU and change out the injectors as well.

There is a post from Garage witth info that will allow you to re-program an ECU off a doner vehicle. You need a new non-flashed ecu to go back to stock.
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Old 07-29-2007, 07:17 PM
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i thought the kit came with 400cc, not 440's...
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