TROUBLESHOOTING GUIDE — CRANKS NORMALLY BUT HARD TO START — AFTER WARM-UP (continued)
F2-32flowchartCRANKS NORMALLY BUT HARD TO START — AFTER WARM-UP (steps 5-6, continued from F2-31)
1
STEP 5: Warm up engine to normal operating temperature and stop it. Connect data link connector terminals F/P and GND by using jumper wire for 3 minutes with ignition switch ON; does engine start easily?
Yes
Change to another brand of fuel
No — Go to next step
2
STEP 6: Try a known good ECM; does condition improve? (page F2-141)
No
same as step 1
Yes
3
Replace ECM (page F2-141)