Troubleshooting Guide — 15 Engine/Stalls on Deceleration (continued)
F2-46flowchart15 Engine/Stalls on Deceleration (steps 6—7)
1
STEP 6: Disconnect idle air control valve connector at idle: does engine speed increase?
No
Replace idle air control valve (page F2-95)
Yes
2
Go to next step
STEP 7: Try a known good ECM and check if condition improves (page F2-141)