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blageo23 · 08-02-2007

You cant lower the boost. The wastegate can only go down as far as what its set at stock. Example: if you have a 15psi spring in an external WG you cant set it below 15psi.
I think I had this same code once and one of the lines going to the WG was crimped.

08-02-2007	#4
blageo23 AWD4G64 Join Date: Jun 2004 Location: Shoreview, MN Posts: 2,286	Re: Check Engine Light Code P1103 You cant lower the boost. The wastegate can only go down as far as what its set at stock. Example: if you have a 15psi spring in an external WG you cant set it below 15psi. I think I had this same code once and one of the lines going to the WG was crimped.