Toyota 3F-E - Engine Hesitates;Poor Acceleration

ENGINE MECHANICAL — Troubleshooting
EM-5
ROUGH IDLING (Cont'd)
Problem
Possible cause
Remedy
Page
Rough idle, stalls or
•
Throttle body
misses (Cont'd)
• ISC valve
•
Brake booster line
Pulling in air between air flow meter and
throttle body
Incorrect idle speed
Check ISC system
FI-40,67
ProCarManuals.com