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TROUBLESHOOTING
2. Engine idle speed inspection
Check the idle speed (page 3-22).
Is the idle speed normal?
YES
–
Improperly adjusted idle adjusting screw.
NO –
GO TO STEP 3.
3. Pressure regulator inspection
Inspect the fuel pressure and record it (page 5-111).
Disconnect the pressure regulator vacuum tube.
Inspect the fuel pressure.
Is the fuel pressure higher with the vacuum tube disconnected?
YES
–
GO TO STEP 4.
NO
–
Faulty pressure regulator.
4. IAC valve inspection
Replace the IAC valve with a new one and start the engine.
Is the trolling speed or engine idle speed normal?
YES
–
Faulty original IAC valve.
NO –
Replace the ECM with a new one and recheck.
Summary of Contents for BFT 250A
Page 92: ...MEMO dummyhead dummyhead...
Page 122: ...MEMO dummyhead dummyhead...
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Page 322: ...MEMO dummyhead dummyhead...
Page 342: ...MEMO dummyhead dummyhead...
Page 359: ...13 3 dummyhead dummyhead ENGINE REMOVAL INSTALLATION TOOL LIST Engine hanger VSB02C000021...
Page 371: ...14 3 dummyhead dummyhead CYLINDER HEAD 39 2 N m 4 0 kgf m 29 lbf ft 50 53...
Page 373: ...14 5 dummyhead dummyhead CYLINDER HEAD Air supply attachment 07VAJ P8A010A...
Page 414: ...MEMO dummyhead dummyhead...
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Page 552: ...MEMO dummyhead dummyhead...
Page 554: ...18 2 dummyhead dummyhead MOUNT MOUNT COMPONENT LOCATION 83 N m 8 5 kgf m 61 lbf ft...
Page 606: ...MEMO dummyhead dummyhead...
Page 608: ...20 2 dummyhead dummyhead CONTROLS CONTROLS COMPONENT LOCATION...