EXHIBIT 23.1 Consent of Independent Certified Public Accountants International Fuel Technology, Inc. St. Louis, Missouri We hereby consent to the incorporation by reference in the Registration Statement on Form S-8 (File Number 333-96261) of our report dated January 25, 2002 relating to the financial statements of International Fuel Technology, Inc. appearing in the Company's Annual Report on Form 10-K for the year ended December 31, 2001. Our report contains an explanatory paragraph regarding the Company's ability to continue as a going concern. /s/ BDO Seidman, LLP Chicago, Illinois March 29, 2002