Fault Code 33, Tester Code 08

1. Check vacuum hose between intake manifold and ECU as follows:
a. Inspect for damage or kinks.
b. Inspect for condensation. Clear line and damper using compressed air as required.
c. Connect vacuum pump to intake end of vacuum hose. Vacuum drop should not exceed 7.25 psi.
2. Inspect air intake system for leakage using a vacuum pump.
3. Clear codes, then perform procedure described under ``Diagnostic Fault Code Output.'' If codes return, replace ECU and retest.