TROUBLESHOOTING GUIDE
F-71spec tableTroubleshooting steps 6-11 (continued)
6
INSPECTIONCheck if ECU terminal voltages are OK (2D, 2N, 2O, 2P, 2Q, 2U and 2V) (page F-129)
ResultYes
ACTIONGo to next step
6
INSPECTION
ResultNo
ACTIONCheck for cause (Refer to 'Check Point for Each Terminal') (page F-132)
7
INSPECTIONCheck if fuel cut operation is OK during deceleration. Fuel cut: Above 1,900 rpm after warm-up
ResultYes
ACTIONGo to next step
7
INSPECTION
ResultNo
ACTIONTry known good ECU (page F-127)
8
INSPECTIONCheck for correct ignition timing at idle (page F-75). Ignition timing: 10° ± 1° BTDC [See fig1: GND TEN CONNECT TERMINALS]
ResultYes
ACTIONGo to next step
8
INSPECTION
ResultNo
ACTIONAdjust (page F-75)
9
INSPECTIONCheck for correct fuel line pressure at idle (page F-111). Fuel line pressure: 216—265 kPa (2.2—2.7 kg/cm2, 31—38 psi) [See fig2: INSTALL CLAMPS]
ResultYes
ACTIONGo to next step
9
INSPECTION
ResultNo
ACTIONHigh pressure: Check if vacuum hose to pressure regulator is damaged or poorly connected. → If OK, replace pressure regulator (page F-112). → If not OK, repair or replace hose
10
INSPECTIONRun engine several minutes at idle and check if fuel line pressure is held after ignition switch turned OFF (page F-102). Fuel line pressure: More than 147 kPa (1.5 kg/cm2, 21 psi) for 5 min. [See fig3]
ResultYes
ACTIONGo to next step
10
INSPECTION
ResultNo
ACTIONCheck injector for fuel leakage (page F-113)
11
INSPECTIONChange fuel to another brand
Result
ACTION