Toyota Mark2 GX100 E/G Hesitate

1998 Toyota Mark2 GX100 Engine Model 1G-FE VVT

Situation
Engine hesitated on acceleration and idled erratically.

Cause
Faulty OCV

Maintenance
Diagnosis noticed P1349 that meant VVT system.
This car did not change E/G oil oftenly.
There were excessive carbon built-up in the OCV.
Then I changed OCV and VVT assembly.

Toyota Rav4 SXA10G Radiator Fan Rotate At IG ON

1994 Toyota Rav4 SXA10G Engine Model 3S-FE

Situation
Radiator fan and condenser fan rotated at IG switch on.

Cause
Faulty Coolant temperature sensor.

Maintenance
At first I looked into wiring diagram.
Then I judged that coolant temperature sensor or pressure switch had had problem.
The pressure switch was properly.
I checked the coolant temperature sensor .
It was faulty. Then I changed new coolant temperature sensor.

Toyota Premio ZZT240 A/C Lamp Blink

2003 Toyota Premio ZZT240

Situation
A/C lamp was blinking after a short time when the A/C switch turned on.

Cause
Faulty A/C magnet clutch

Maintenance
The panel diagnosis noticed No22 that meant locked compressor.
Then I checked the magnet clutch and measured the resistance.
The resistance should be185+-20ohm.
But it was 250ohm. Then I changed new magnet clutch.

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Toyota Nadia SXN10 E/G Stalls

1999 Toyota Nadia SXN10 Engine Model 3S

Situation
The engine stalled at an idle.

Cause
Faulty ECU ( computer)

Maintenance
Carbon sludge were piled up by exhaust gas recirculation system.
I cleaned ECU, but it did not work well.
Then I exchaged new ECU ( computer).

Toyota Vitz SCP10 E/G Check Lamp Lit

2000 Toyota Vitz Yaris SCP10 Engine Model 1SZ

Situation
Check engine lamp illuminated.
The car run smoothly.

Cause
the nozzle of injectors clogged.

Maintenance
Diagnosis noticed P0171 that meant defect of lean vapor.
So I checked air-flow meter, spark plugs and O2 sensor.
But they were properly.
Then I took off fuel injectors and checked them.
All a third of fuel injection nozzles were clloged by carbon sludge.
After that I cleaned them and it work properly.

Toyota Landcruiser HDJ81V Gear Not Move

1997 Toyota Landcruiser HDJ81V

Situation
The automatic transmission selector lever didn't move from Park.

Cause
Disconnecting electronics ignition fuse 15A.

Maintenance
When I pressed the brake pedal, the stoplamp illuminated.
The signal of stoplamp switch was input to the No6 terminal of shift lock control relay.
The key inter lock system was properly.
Becuase of this I judged that electrical power supply and grounding wire were properly.
Then I changed a shift lock control relay , but it didn't work well.
After that I checked the voltage of the No3 terminal of the shift lock relay.
I found that there was no voltage and checked electronics ignition fuse 15A.
The fuse was disconnecting.
Then I changed the 15A fuse.

Toyota Sprinter AE110 SRS Lamp Lit

1998 Toyota Sprinter AE110 Engine Model 5A-FE

Situation
SRS warning lamp illuminated.

Cause
Faulty SRS control unit

Toyota Caldina ST191G E/G Not Start

1995 Toyota Caldina ST191G Engine Model 3S

Situation
The engine rotated but would not start.

Cause
Faulty ignition coil.

Maintenance
Firstly I checked electrical system and did spark test.
Spark were weak.
Then I found that there were leak at one of the ignition coil.
I changed it new ignition coil.

Nissan Sunny FB15 E/G Stall

2001 Nissan Sunny FB15 Engine Model QG15DE

Situation
Engine started but stoped immidiately without pressing accelrator.

Cause
Faulty Engine computer and AAC valve.

Maintenance
Diagnosis was properly.
 I took off the AAC valve and checked it.
The value of resistance was out of average.(27-33ohm)
I exchanged new AAC valve. but it didn't work well.
After that I took off the engine computer
and found that platform had been burning.
Then I exchanged new engine computer.
Finaly It worked properly.

Toyota Mark2 GX110 Check Lamp Lit

20001 Toyota Mark2 GX110 Engine Model 1G

Situation
Engine check lamp illuminated.
The engine was hunting a liittle at an idle.

Cause
Faulty throttle position sensor.

Maintenance
Diagnosis noticed that cord P0120 which meant throttle sensor systems.
I used a service manual and confirmed by data monitor.
Then I checked throttle sensor of accelration angle and idling switch.
The throttle sensor was 0% (Faulty)
The idling switch was off (faulty)
After that I took off the throttle position sensor and checked it.
It was disconnecting at ON.(Faulty)
Then I judged that it had been faulty and exchanged new throttle position sensor.

Nissan Figaro FK10 Coolant Leakage

1991 Nissan Figaro FK10 Engine Model MA10

Situation
Coolant leakage in the timing belt cover.

Cause
Coolant leakage from the water pump and a bolt of the tensioner pulley.

Maintenance
I took off timing belt cover and timing belt and checked leakage from the water pump.
Then I exchaged new water pump and tested water pressure.
After that I found leakage between the timing belt and tensioner pulley.
It came from the bolt of tensioner pulley.
Then I changed a new bolt using lock sealing.

Toyota Progres JCG10 VSC Lamp Lit

1999 Toyota Progres JCG10 Engine Model 1JZ

Situation
VSC warning light and TRC OFF lamp illuminated.

Cause
Faulty Steering Sensor.

Maintenance
The engine run smoothly.
When I turned the steering wheel until the end, warning lapms illuminated.
Diagnosis noticed cord31 which meant faulty of the steering sensor.
I judged that the steering sensor was faulty.
Then I exchanged new steering sensor.
After that it worked properly.