EX-23.1 2 dex231.txt CONSENT OF ERNST & YOUNG LLP EXHIBIT 23.1 CONSENT OF INDEPENDENT AUDITORS We consent to the reference to our firm under the caption "Experts" and to the use of our report dated May 31, 2001, except for Note 13, as to which the date is June 14, 2001, in Amendment No. 2 to the Registration Statement (Form S-3 No. 333-63726) and related Prospectus of IMPCO Technologies, Inc. dated July 26, 2001. Our audits also included the financial statement schedule of IMPCO Technologies, Inc., listed in Item 16(b). This schedule is the responsibility of the Company's management. Our responsibility is to express an opinion based on our audits. In our opinion, the financial statement schedule referred to above, when considered in relation to the basic financial statements taken as a whole, present fairly in all material respects the information set forth therein. /s/ Ernst & Young LLP Long Beach, California July 25, 2001