Won't Start

[mkiiisupra]

White smoke is only during starting, i dont loose any oil. Also i dont not have a first CAT. i imagine the white smoke was due to the carb cleaner residue that was left over on the throttle body/intake penlum after cleaning them (they where completely dry before i put back together)

She has never had a problem starting untill i calibrated my TPS and all the resistances where checked with a ohm meter and are now correct (they where pretty far off). I heard that once u calibrate ur TPS it would throw your base timing out.

I had a mechanic set the timing on my engine once after he put on a new timing belt and he said that was very difficult to set and almost off the scale, i dont think he thought to check the TPS.

[mkiiisupra]

Oh and as far as the codes where concerned yes i did pull the 15a fuse for EFI that resets the codes and drove around for 15mins to see if the light would come on again. Before it would turn back on before i even left my street and i drove around for a bit.

[Irish_Mechanic]

Originally Posted by mkiiisupra

White smoke is only during starting, i dont loose any oil. Also i dont not have a first CAT. i imagine the white smoke was due to the carb cleaner residue that was left over on the throttle body/intake penlum after cleaning them (they where completely dry before i put back together)

Like i said she would has never had a problem starting untill i calibrated my TPS. I heard that once u calibrate ur TPS it would throw your base timing out.

I had a chevy for a while that would only smoke at startup, it was white and dissipated after running - it was just a simple valve seal issue. a little oil would seep into the combustion chamber and accumulate while it sat.

as far as the carb cleaner, i was under the assumption you ran it for a while and idled it after putting it back together.

kinda odd tho.... most of the vehicles i've worked on run in an 'open loop' status untill a certain temperature is reached.....generally a set of predetermined perameters....

[mkiiisupra]

yep i did, and never got it started again so couldnt tell you if its still putting out white smoke on start up, just did the only time i got it running hehe

now it just stumbles or pops, doesnt put out anysmoke, and doesnt start ;(

about 5-6 months ago had head redone and all the gaskets where replaced, dont know if one of those is what you are refering too

And it has never put out white smoke before that startup

[Irish_Mechanic]

you've probably already tried this, but if you put the pedal down to the floor when cranking..... that would eliminate the vaccuum dependancy for ignition timing while you try to start it.......

try starting fluid too... i know it seems odd, but maybe its an A/F metering problem...longshot i know, but it would put that question out of your mind....

i'm not sure if toyota does it like most other car companies, but you could try unplugging the TPS and put it into limp mode. she may start that way.

i think you may be right with the ignition timing concern.... the odd thing tho, is that it ran for 15 minutes!!!

i'll stop putting all these mixed tests out there, as i'm sure you'll figure it out.

[mkiiisupra]

you give me to much credit lol, in 2 days when im off im buying a timing light and doing the Ignition timing..

I will try your WOT thing and the TPS unplug as well, i do appreciate all your responses. I probably will figure it out, but that is only becuase of people like you, and others in the forum that take the time to post replies


Any ways all the timing instructions are unclear on a couple things...

Where is the CPS that i have to loosen to adjust the timing. and do i loosen it before i start the engine?

Something else i just thought of. If i start the car with the TPS unpluged this will put my car into limp mode since its getting no information from my TPS, but isnt the ignition timing based on the TPS, so i adjust with it unpluged and soon as i plug it back in and try to start i would have the same problem?

[Irish_Mechanic]

Originally Posted by mkiiisupra

you give me to much credit lol, in 2 days when im off im buying a timing light and doing the Ignition timing..

I will try your WOT thing and the TPS unplug as well, i do appreciate all your responses. I probably will figure it out, but that is only becuase of people like you, and others in the forum that take the time to post replies


Any ways all the timing instructions are unclear on a couple things...

Where is the CPS that i have to loosen to adjust the timing. and do i loosen it before i start the engine?

Something else i just thought of. If i start the car with the TPS unpluged this will put my car into limp mode since its getting no information from my TPS, but isnt the ignition timing based on the TPS, so i adjust with it unpluged and soon as i plug it back in and try to start i would have the same problem?

the Cam Position Sensor is on the front end of the exhaust camshaft, where on my car (N/A) you would find the distributor (guys lucky enough to have the turbo also get coil packs...). so look at the frontmost part of the motor on the passenger side. thats ur CPS. Looks kinda like a hockey puck painted tan. I would Suggest you warm the engine up before you loosen that bolt(s). you're gonna need to check the timing as is to know if you need to adjust it at all..... i would also suggest loosening it only enough to move it, if its too loose tightening it exactly where you want it will be more difficult. Also, i like to find the spot on the crank where the timing should be, and paint a line with white-out. i also paint a line on the calibration bracket at the appropriate point. Makes it easier to see. there should be a notch on the crank pulley..... old timers just adjust untill they hear the motor purr as it should.....

the point in unplugging the TPS is to see if it will run. if it stays lit without the TPS plugged in, you can better deduce that the issue lies within the TPS. Just a way to help get closer to the epicenter of your no-start.

kinda funny....i've got my tools in the living room and i'm out of work, and yet my services are still in demand!!! long live the internet

[mkiiisupra]

Yea... i found a few pictures on the net of what it looks like so i think ill recognize it if i see it. Thanks though for the description of its location. The hatch mark on my crank pulley currently is pointed towards the ground and no where near the timing marks, i imagine it moves with the car on?

My car started before when my TPS was improperly calibrated and while it was uncalibrated my timing was set, so now with TPS set to all the right resistances i think my timing is so far off that it wont start, although i am not a mechanic lol. And i wish my house floor was coverd in tools would keep me from running to the store every time i did a job.

[mkiiisupra]

Doesnt start with TPS disengaged, or at WOT

however now when i turn her over she just clicks and doesnt actually attempt to start.... I got one decent crank out of her with TPS off then after that wouldnt attempt to start

i think i drained the battery lol, can u check that with a multi meter?

[abhattan]

Wow, sounds like you guys been burnin' that midnight oil! Are we close to figuring anything out? I had a question. In my experience, not to insult yours Irish, but doesn't white smoke mean coolant and blue means oil? Now here is just a suggestion, but the white smoke you saw when the car was started could probably have been condensation that was built up in your exhaust pipe, being that the car was sitting for a while. If not, I would say it's coolant. As far as timing is concerned, as Irish said before, the car was running, for 15 minutes! The timing isn't off. Even if it were a tooth of on the belt, which is more degrees than you can get by adjusting the CPS or calibrationg, the car would attempt to run, but die out. The first thing you should do in a no start situation is always check for spark and then fuel, in that order. You wouldn't want any fuel laying around a nice spark! Then you take it from there.