## PGM-FI System

#### Component Location Index (cont'd)

11-223

D15Y2, D15Y4, D16W8, D17Z1, D17A2, D17Z3, D17Z4 engines: | D15Y4, D17A2 (KU, KQ, KZ, FO models), D17Z1 (KQ model) engines:

1. PRIMARY HEATED OXYGEN SENSOR (PRIMARY HO2S) (SENSOR 1)

   Troubleshooting, page 11-225

   Replacement, page 11-279

2. SECONDARY HEATED OXYGEN SENSOR (SECONDARY HO2S) (SENSOR 2)

   Troubleshooting, page 11-255

   Replacement, page 11-279

3. INJECTORS

   Test, page 11-276

   Replacement, page 11-113