Need more info. Year, Engine, other codes, Etc. I have access to codes and test routines for the 97 model year which indicates a 1407 code is for the 97 Probe. Following is info on the 1407 code.
HH70 CONTINUOUS MEMORY DTCS P0400, P1487 AND P1407: OUTPUT ALL DTCS
Diagnostic Trouble Code (DTC) P0400 indicates an EGR valve/flow failure. Diagnostic Trouble Code (DTC) P1407 indicates the EGR valve did not move. Diagnostic Trouble Code P1487 indicates a lack of power to the EGR check solenoid.
-- Damaged EGR Vacuum regulator solenoid.
-- Damaged EGR Vacuum regulator solenoid harness circuits.
-- Damaged EGR Atmospheric solenoid.
-- Damaged EGR Atmospheric solenoid harness circuits.
-- Damaged EGR valve.
-- Damaged EGR Valve Position sensor.
-- Damaged EGR Valve Position sensor harness circuits.
-- Damaged EGR Check solenoid.
-- Damaged EGR Check solenoid harness circuits.
-- Restriction in exhaust system.
-- Damaged PCM.
l Output all Continuous Memory, KOEO and KOER self-test DTCs.
If any other DTCs are output, record them and address them after completing this Pinpoint Test.
l Is P0106, P0107, P0108, P1400, P1401 or P1408 output?
Self-test indicates that the EGR system has been damaged. GO to «Section 4A», Powertrain Diagnostic Trouble Codes (DTCs) Charts, to address the DTCs.
GO to «HH71».
97 Tbird Sport
99 J-Mod Tranny
270K miles and still flying, just not daily!