Fig. 77: Verifying Spool Valve Operates & Moves To Maximum Valve Timing Advance Position
Courtesy of MAZDA MOTORS CORP.
7. Stop applying battery positive voltage and verify that the spool valve returns to the maximum valve
timing retard position.
If not as specified, replace the oil control valve.
ENGINE TUNE-UP [LF]
ENGINE TUNE-UP PREPARATION
1. Verify the following:
AT: Selector lever is in P or N position.
MT: Shift lever is in neutral position.
2. Verify that no DTCs are available.
3. Warm up the engine (ECT is
approx. 80°C {176°F} or more)
as follows.
NOTE:
When applying battery positive voltage between the oil control valve
terminals, the connection can be either of the following:
Positive battery cable to terminal A, negative battery cable to
terminal B
Positive battery cable to terminal B, negative battery cable to
terminal A
2007 Mazda MX-5 Miata Sport
2007 ENGINE Mechanical - MX-5
Microsoft
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