Headlights only work on High Beam - is it a fuse?

[t4yl0r10]

HAHA! Yea man, I've just used the same one for so long, my name is never available so i had to be creative. I use the same one for many different forums.

Thanks for helping me though, I really appreciate it. You'll have to shoot me a pic of your car, love to see it. I love the 86-90 models, and that will be my next venture once I get my 85 up to snuff. Used to have an 83, was really neat but I wrecked it ( teenage years, stupid I know ).

Sounds like it may be the injectors leaking fuel back into the tank. Becuase the longer it sits the harder it is to start. So thats 'seems' right to me. Just never did it before, so thats odd. I can try to go start it without pumping the gas, but it wont turn over. Then I pump the gas once or twice and it almost turns over, then after about 4-5 tries, it will start. It gets better each time I make an attempt and eventually starts. ( probably after about 6 tries it starts ).

sounds like its leaking fuel back into the tank to me, as the longer it sits the worse it is. For example: i got to work, have trouble starting in the morning. At lunch, it fires on the 1st or 2nd try, but if it sits all night, it takes 6-7 tries.

What do you think based on this description?

Thanks man,

Taylor
1985 Toyota Supra 5MGE DOHC 2.8L 12v L6

[Busted Knuckles]

My Supra is hard to start in the mornings, too. I've diagnosed it as the check ball at the fuel pump allowing fuel pressure to return to the tank. In the morning, I turn the key to the 'ON' position, so the dash lights are on, but I do not try to start it. This runs the fuel pump for a couple of seconds, and builds back the pressure. I leave it there for a few seconds, letting the fuel pump timer run out, then turn the key to 'OFF' for a few seconds to reset the timer. Then, try to start. Generally, it fires right up when I do that.

[t4yl0r10]

awesome thanks man. I talked to my mechanic yesterday and he mentioned the same technique. I turned the key to on position this morning and let it sit for a few seconds, but I did not turn it back off to reset the timer. I still had trouble starting this morning. I will try to do the same thing you do at lunch today and see if reseting the timer is what I'm missing.

Thanks for the help, I hope this works!

[Pretaco]

I didn't think that trick worked on toyotas, but maybe on turbo supras due to the style of maf.
Most toyotas don't start the fuel pump until the key is turned to start, then when the engine is running the maf has a switch that controls the fuel pump, so if the engine dies, the fuel pump does too.
But the supra turbo has a different style of maf, one that doesn't allow for the mechanical fuel pump switch, so it could have a different fuel pump control circuit.
The natural aspired engines still have the older style maf and so they probably work in the typical toyota way, whereas the fuel pump only works at "start" or when the engine is running.

[t4yl0r10]

Well I have an 85 Supra 5MGE, so its not a turbo. Pretaco, any tricks that might help get it started quicker? I pump the gas, a couple of times and that seems to help with each try.

I'm going to try Busted Knuckles suggestions at lunch today and see if it makes a difference. Hoping I'll get lucky and this works. Also going to run some Fuel injector cleaner through it today and see if that helps.

Thanks guys!