<PAGE>

                                                                    EXHIBIT 31.2

                     RULE 13A-14(A)/15D-14(A) CERTIFICATION

I, Torbjorn B. Lundqvist, certify that:


1. I have reviewed this Annual Report on Form 10-KSB/A of Aviation Upgrade
Technologies, Inc.;


2. Based on my knowledge, this report does not contain any untrue statement of a
material fact or omit to state a material fact necessary to make the statement
made, in light of the circumstances under which such statements were made, not
misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial
information included in this report, fairly present in all material respects the
financial condition, results of operations and cash flows of the small business
issuer as of, and for, the periods presented in this report;

4. The small business issuer's other certifying officer(s) and I are responsible
for establishing and maintaining disclosure controls and procedures (as defined
in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over
financial reporting (as defined Exchange Act Rules 13a-15(f) and 15d-15(F) for
the small business issuer and have:

     a.   Designed such disclosure controls and procedures, or caused such
          disclosure controls and procedures to be designed under our
          supervision, to ensure that material information relating to the small
          business issuer, including its consolidated subsidiaries, is make
          known to us by others within those entities, particularly during the
          period in which this report is being prepared;

     b.   Designed such internal control over financial report, or caused such
          internal control over financial reporting to be designed under our
          supervision, to provide reasonable assurance regarding the reliability
          of financial reporting and the preparation of financial statements for
          external purposes in accordance with generally accepted accounting
          principles;

     c.   Evaluated the effectiveness of the small business issuer's disclosure
          controls and procedures and presented in this report our conclusions
          about the effectiveness of the disclosure controls and procedures, as
          of the end of the period covered by this report based on such
          evaluation; and

     c.   Disclosed in this report any change in the small business issuer's
          internal control over financial reporting that occurred during the
          small business issuer's most recent fiscal quarter (the small business
          issuer's fourth fiscal quarter in the case of an annual report) that
          has materially affected, or is reasonably likely to material affect
          the small business issuer's internal control over financial reporting;
          and

5. The small business issuer's other certifying officer(s) and I have disclosed,
based on our most recent evaluation of internal control over financial
reporting, to the small business issuer's auditors and the audit committee of
the small business issuer's board of directors (or persons performing the
equivalent functions):

     a.   All significant deficiencies and material weaknesses in the design or
          operation of internal control over financial reporting which are
          reasonably likely to adversely affect the small business issuer's
          ability to record, process, summarize and report financial
          information; and

     b.   Any fraud, whether or not material, that involves management or other
          employees who have a significant role in the small business issuer's
          internal control over financial reporting.



Date: January 10, 2006


/s/ Torbjorn B. Lundqvist
---------------------------
Torbjorn B. Lundqvist
Chief Financial Officer



                                       31