FI/EFI System — Symptom — Engine Hesitates AND/OR Poor Acceleration, page 20

SYMPTOM — ENGINE HESITATES AND/OR POOR ACCELERATION

CHECK CLUTCH AND BRAKE
BAD → 1. Clutch — slips
      2. Brakes — drag
↓ OK

CHECK FOR VACUUM LEAKS IN AIR INTAKE LINE
BAD → 1. Oil filler cap
      2. Oil level gauge
      3. Hose connections
      4. PCV hoses
      5. EGR system — EGR valve stays open
↓ OK

CHECK AIR FILTER ELEMENT
BAD → Clean or replace
↓ OK

CHECK DIAGNOSIS SYSTEM
Check for output of diagnostic code.
(See page FI-22)
Malfunction code(s) → Diagnostic code(s) (See page FI-2B)
↓ Normal code

CHECK IGNITION SPARK
1. Unplug connectors of injector resistor and start injection time switch.
2. Check by holding spark plug wire 8 — 10 mm (0.31 — 0.39 in.) away from engine block while engine cranking. A strong spark should be noted.
BAD → 1. Plug wires
      2. High-tension cords
      3. Distributor
      4. Ignition coil, igniter
↓ OK

CHECK IGNITION TIMING
1. Short both terminals of the check connector.
2. Check ignition timing.
   STD: 10° BTDC
   (w/short terminals of the check connector)
NO → Ignition system (See page IG-2)
↓ OK CONTINUED ON PAGE FI-21