Injector circuit isn't switching when it's told to (TBI)
(MPI) injector circuit #1 not switching right
(turbo) injector circuit #2 not switching right
(all 1990-) injector output driver
Quad-driver module (computer) 2nd gear circuit
Injector control circuit does not respond to control signal.
Fuel injection circuit control
Sub-oxygen sensor circuit fault (for ES300 CA GS300 models)