Note On Intermittents
If an intermittent Code E26 is being set, operate vehicle while observing throttle switch status ("OFF" on ECCP) and throttle angle parameter P.0.1 simultaneously. If throttle switch ever fails to open upon opening of throttle, investigate that circuit for a malfunction. If throttle angle ever jumps to greater than 13 degrees with throttle closed, investigate TPS circuits for a malfunction.