Troubleshooting Guide — 14 Idle Moves Up and Down/Idle Hunting (continued)
F2-44flowchartStep 9 distinguishes fuel distributor RH (terminal A) and LH (terminal D), implying the K8-ZE V6 dual-bank fuel rail.
14 Idle Moves Up and Down/Idle Hunting (steps 7—13)
1
STEP 8: Is there fuel injector operating sound at idle?
No
Go to next step
Go to next step
STEP 9: Does battery positive voltage exist at fuel distributor (RH) terminal A? Does battery positive voltage exist at fuel distributor (LH) terminal D?
Yes
2
Go to step 10
go to step 10
3
STEP 10: Is strong blue spark visible at disconnected high-tension lead? (section G)
No
Check high-tension lead. If OK, check distributor cap and rotor (section G). If not OK, replace high-tension lead
Yes
4
Go to next step
5
STEP 11: Are spark plugs OK? (section G)
No
Clean or replace spark plug (section G)
Yes
6
Is engine compression correct? (section B2) Compression (Minimum): 981 kPa {10.0 kgf/cm², 142 psi}-300 rpm. If OK, go to next step. If not OK, check for cause
7
STEP 12: Check for fuel injector leakage (page F2-116)
Yes
Replace fuel injector (page F2-115)
No
8
Go to next step
STEP 13: Try a known good ECM and check if condition improves (page F2-140)