Rocklord42
New Member
- Joined
- Aug 18, 2019
- Messages
- 24
- Country Flag
Hi,
Just got around to taking the tarp off the cruiser for some TLC in the lockdown. 2001 105 with 1FZ-FE 4.5 with EFI.
She was last started over Christmas, put the batteries back in, she fires and tries but then fails. She only fires on the first turn of the key. Key needs to go all the way to off and back and then she fires and fails. If you try to turn over the starter again she sounds fuel starved. She keeps sounding like she might just start but doesn't. I started with the fuel system cause she clearly has spark. No problem on either fuel pump, lots of pressure out of the filter. Checked the fuel pulse on the rail and she's pulsing. Checked the vacuum and return lines and everything seems fine. No reason to question injectors, they can't all fail at once (?). She's building a bit of vacuum in the tank so I'll check the charcoal tomorrow, but there isn't really enough vacuum to empty the rail so I'm doing it just to cross it off the list.
I have no reason to question compression cause she fires.
I have checked as many of the cable connectors as I can, they all look perfectly clean and again, she fires.
I pulled the fuses and relay for the EFI, perfect. Checked all the fuses.
I'm suspicious of the fact that she only fires after the first turn to ignition. What is tripping fuel/efi that is getting reset when you turn off ? So I'm thinking one of the sensors might have failed. Maybe cam position sensor ? Does anybody know what signal should be at that sensor or if I have a way of ruling it out as a problem ?
I had the batteries out of her for the past few months.
I will run diagnostics when I can find my connector or have the time to count flashes but has anybody got any bright ideas in the meantime ?
Ta,
Rock
Just got around to taking the tarp off the cruiser for some TLC in the lockdown. 2001 105 with 1FZ-FE 4.5 with EFI.
She was last started over Christmas, put the batteries back in, she fires and tries but then fails. She only fires on the first turn of the key. Key needs to go all the way to off and back and then she fires and fails. If you try to turn over the starter again she sounds fuel starved. She keeps sounding like she might just start but doesn't. I started with the fuel system cause she clearly has spark. No problem on either fuel pump, lots of pressure out of the filter. Checked the fuel pulse on the rail and she's pulsing. Checked the vacuum and return lines and everything seems fine. No reason to question injectors, they can't all fail at once (?). She's building a bit of vacuum in the tank so I'll check the charcoal tomorrow, but there isn't really enough vacuum to empty the rail so I'm doing it just to cross it off the list.
I have no reason to question compression cause she fires.
I have checked as many of the cable connectors as I can, they all look perfectly clean and again, she fires.
I pulled the fuses and relay for the EFI, perfect. Checked all the fuses.
I'm suspicious of the fact that she only fires after the first turn to ignition. What is tripping fuel/efi that is getting reset when you turn off ? So I'm thinking one of the sensors might have failed. Maybe cam position sensor ? Does anybody know what signal should be at that sensor or if I have a way of ruling it out as a problem ?
I had the batteries out of her for the past few months.
I will run diagnostics when I can find my connector or have the time to count flashes but has anybody got any bright ideas in the meantime ?
Ta,
Rock