Poor Acceleration
F2-56flowchartF2 section = 1.8L K8-ZE V6 engine.
20 Poor Acceleration
Description: Performance poor during acceleration. Idle condition normal.
NOTE
[TROUBLESHOOTING HINTS] (1) Factors other than engine malfunction: Clutch slipping; Brake dragging; Low tire pressure; Incorrect tire size; Over-loaded. (2) Low intake air amount: Throttle valve not open fully; Clogged intake-air system. (3) Air/fuel mixture too lean: Fuel line pressure decreases; Fuel injection malfunction. (4) Poor ignition. (4) Low engine compression. (4) Alcohol-blended fuel used.
Poor Acceleration (STEP 1–4)
1
STEP 1: Check factors other than engine: Clutch slipping; Brake dragging; Low tire pressure; Incorrect tire size
No
Repair
Yes
2
STEP 2: Does throttle valve fully open when accelerator is fully depressed?
No
Is accelerator cable correctly installed? (page F2-97). If it is, check throttle body (page F2-96). If it is not, install it correctly
Yes
3
STEP 3: Is "00" displayed on SST with ignition switch ON? (page F2-73)
No
Diagnostic trouble code No. displayed. Check for cause (Refer to specified check sequence) (page F2-74)
Yes
4
"00" displayed. Go to next step
Throttle position sensor continuity (Step 4)
0.15 mm (0.006 in)
ContinuityYes
0.50 mm (0.020 in)
ContinuityNo