Trouble Diagnoses — Diagnostic Procedure 3 — Unstable Idle (Cont'd)
EF & EC-258flowchartGA16DE engine. Compression pressure specs given in kPa, bar, kg/cm2 and psi at 350 rpm.
Diagnostic Procedure 3 — Unstable Idle (Cont'd)
1
B (from previous page)
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CHECK COMPRESSION PRESSURE. Check compression pressure. Standard: kPa (bar, kg/cm2, psi)/350 rpm 1,324 (13.24, 13.5, 192). Minimum: kPa (bar, kg/cm2, psi)/350 rpm 1,128 (11.28, 11.5, 164). Difference between each cylinder: kPa (bar, kg/cm2, psi)/350 rpm 98 (0.98, 1.0, 14)
N.G.
Check pistons, piston rings, valves, valve seats and cylinder head gaskets.
O.K.
3
CHECK E.C.U. HARNESS CONNECTOR. Check the E.C.U. pin terminals for damage or poor connection of E.C.U. harness connector.
N.G.
Repair or replace.
O.K.
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TRY A KNOWN GOOD E.C.U.*
INSPECTION END
NOTE
*: E.C.U. may be the cause of a problem, but this is rarely the case.