Hey,
i have a 1999 UZJ100 with around 348000km that suddenly has intermittent starting issues. Cranks just fine but no sign of life. Everytime this has happened i have eventually connected my diagnostic tool, and the car starts right up first try after connecting it. After it starts up it runs absolutely fine until its been sitting a few hours and the problem is back. Have tried with different keys and checked the EFI fuse and relay, this all looks to work as it should. You can clearly hear/feel the relay click when ignition goes on, and the security light comes off when the key is inserted, and stays off when cranking. The Engine light and atf-temp light comes on when i turn the key. Looking at the live data i cant see any clear issues, all sensor inputs except from the bank 2 sensor 2 O2 sensor and maybe the IAT sensor shows expected values. PNP works as it should when checking with the diagnostic tool. I am pretty sure at least one of second O2 sensors is bad since this always shows 0V, and the IAT read 36 degrees celsius after cranking for 5 seconds while the outside temps where about 6. After driving around and getting it up to temp the IAT showed 48 degrees celsius. Also tested the fuel pump with the diagnostic tool when having starting problems and it runs fine. I have looked at a few threads and seen some of the common issues, especially the EFI realy/fuse issue. But from what i can see all of these either get fault codes, flashing security light while cranking, no CEL and ATF-temp light when turning the key, melting plastic in fusebox or other signs that mine is not showing. Anyone have any suggestions to what can cause this?
After buying the car 5 months ago i have done all of the below related to the engine:
Replaced timing belt, thermostat and water pump.
Replaced all coils and plugs.
Replaced battery.
Replaced oil, oil-filter and air filter.
Replaced the fuel tank, fuel filler neck, fuel filter, and all fuel lines.
Replaced belt, pulleys, fan bracket and tensioner.
replaced the radiator.
The car needed a lot of work when i bought it 5 months ago, it had been sitting since 2015 when someone else started taking it apart for a respray but never finished it. I have used a tonn of time and money on it and love the car. Other than the issue im having now there is a vibrations that gets bad when going above 85km/h that im gonna look at next. Also feel like it looks really tall in the rear vs. the front. Seller said it had a 40mm OME lift on it, from what i can see the rear springs and front shocks are OME, but rear shocks are Koni. Unsure if the torsion bars are oem or not, i have adjusted these so theres about 60mm dropp in the front. But still looks way to tall in the rear. Inputs on this would alse be appreciated.
i have a 1999 UZJ100 with around 348000km that suddenly has intermittent starting issues. Cranks just fine but no sign of life. Everytime this has happened i have eventually connected my diagnostic tool, and the car starts right up first try after connecting it. After it starts up it runs absolutely fine until its been sitting a few hours and the problem is back. Have tried with different keys and checked the EFI fuse and relay, this all looks to work as it should. You can clearly hear/feel the relay click when ignition goes on, and the security light comes off when the key is inserted, and stays off when cranking. The Engine light and atf-temp light comes on when i turn the key. Looking at the live data i cant see any clear issues, all sensor inputs except from the bank 2 sensor 2 O2 sensor and maybe the IAT sensor shows expected values. PNP works as it should when checking with the diagnostic tool. I am pretty sure at least one of second O2 sensors is bad since this always shows 0V, and the IAT read 36 degrees celsius after cranking for 5 seconds while the outside temps where about 6. After driving around and getting it up to temp the IAT showed 48 degrees celsius. Also tested the fuel pump with the diagnostic tool when having starting problems and it runs fine. I have looked at a few threads and seen some of the common issues, especially the EFI realy/fuse issue. But from what i can see all of these either get fault codes, flashing security light while cranking, no CEL and ATF-temp light when turning the key, melting plastic in fusebox or other signs that mine is not showing. Anyone have any suggestions to what can cause this?
After buying the car 5 months ago i have done all of the below related to the engine:
Replaced timing belt, thermostat and water pump.
Replaced all coils and plugs.
Replaced battery.
Replaced oil, oil-filter and air filter.
Replaced the fuel tank, fuel filler neck, fuel filter, and all fuel lines.
Replaced belt, pulleys, fan bracket and tensioner.
replaced the radiator.
The car needed a lot of work when i bought it 5 months ago, it had been sitting since 2015 when someone else started taking it apart for a respray but never finished it. I have used a tonn of time and money on it and love the car. Other than the issue im having now there is a vibrations that gets bad when going above 85km/h that im gonna look at next. Also feel like it looks really tall in the rear vs. the front. Seller said it had a 40mm OME lift on it, from what i can see the rear springs and front shocks are OME, but rear shocks are Koni. Unsure if the torsion bars are oem or not, i have adjusted these so theres about 60mm dropp in the front. But still looks way to tall in the rear. Inputs on this would alse be appreciated.
