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Old 03-30-2007, 04:44 PM   #1
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Default 2001 stock ECU/injectors can handle boost?

anyone know?

I'm curious for a few reasons. will the stock setup go nutty if it smells boost or too much airflow?

matt
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Old 03-30-2007, 05:03 PM   #2
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not that i've heard of. just that you have a returnless system right at 60psi right?
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Old 03-30-2007, 05:03 PM   #3
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Outside of the usual caveat that the O2 sensor will be fighting you as you add fuel, I can't see why an '01 ECU would be predisposed to freak out. It has no MAP sensor.

Is there a problem?
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Old 03-30-2007, 06:42 PM   #4
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no problem (yet?)
and when I say stock, I mean stock. as in adding a turbo and leaving everything else (well, not the crossover pipe) stock. just wondering if it's possible to datalog the OBDII port and build a stock map with the turbo on so I don't have to change a bunch of crap back to stock.

and I can't wire the WG open, it's an external.
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Old 03-31-2007, 09:03 AM   #5
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You should be ok, the MAF doesn't start freaking out til ~15psi, But as Joe all ready mentioned the stock ecu will keep your A/F @ 14.7, w/o an o2 clamp

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Old 03-31-2007, 12:42 PM   #6
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I'd probably run close to 14.7 AFR under 4 psi anyway... (3.8 psi wg spring).

ok thanks guys!
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Old 03-31-2007, 12:52 PM   #7
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My car went dead lean under 3 psi last night. I removed the Voodoo box and was driving under the stock ECU. I stay out of boost when driving like that but wanted to see what would happen if I got into a little bit of boost. The wideband said my AFR went down to 17. Not saying this is correct or anything, but I won't be going into any boost under the stock ecu again. Gotta get MS working.
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Old 03-31-2007, 12:57 PM   #8
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Quote:
Originally Posted by y8s View Post

and I can't wire the WG open, it's an external.
Take the spring out...
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Old 03-31-2007, 11:18 PM   #9
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Quote:
Originally Posted by nester View Post
Take the spring out...
the man has a point.

I actually had it apart today. Just got my T-handle hex keys in metric finally. I could probably devise a way to hold the piston up or somethin...
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Old 03-31-2007, 11:27 PM   #10
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Either that or put like a 3psi spring in, I think it'll hold it's own at 3psi.
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