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-   -   Car Wont Start (http://www.toyota-supra.info/forums/mkiii-supra/8335-car-wont-start.html)

Toyota87Supra 05-01-2007 01:07 AM

Car Wont Start
 
I recently replaced the clutch and put everything back together and started the car in my garage, it ran fine so i pushed it out cause i needed the room in my garage and now it wont start. I havent really touched anything that has to do with the cam sensor so i dont think its that and i know i am getting fuel. I just replaced the spark plugs and wires and still nothing. Im thinking maybe a loose ground or a vacuum hose is in the wrong place. Let me know what you think and if anyone has a picture of where all the vacuum hoses go that would be cool cause i cant find one. Thanks.

supramacist 05-01-2007 01:34 AM

Nice.

If you really want help wer'e going to need to know a bit more than it started, I rolled it out and it won't start.

Wich is really all that you have said.

Be more speceific. You're getting fuel.
Does it crank? What's it sound like when it does?

Have you checked the battery or the fuses.
Was the gas in it old. Could the gas tank had condensation form wich would keep it from starting? Dramatic weather changes?

Anything.

j3pz 05-01-2007 01:54 AM

yes you need to give us some more info. before/after you do that check connectors, make sure they arent loose. heres a few more to check while youre at it
http://www.cygnusx1.net/Supra/Librar...ion=FI&Page=10
do a spark test, try spraying some starter fluid in the intake.

Toyota87Supra 05-01-2007 01:54 AM

It still cranks and is getting fuel but the fuel is like 6 months old, the thing is that it was running in my garage cause i started and ran it 4 times but after i rolled it out it wouldnt start again. i get power to everything else it just seems like its not getting the spark. Ive also tried spraying starter fluid in the intake.

j3pz 05-01-2007 01:54 AM

wow we posted at the same time

Toyota87Supra 05-01-2007 02:05 AM

well its dark here so i cant work anymore but i know everthing is connected, ill have to check my igniter tomorrow but do you think it could be related to a bad ground. and if you could maybe give a link to a diagram of all the ground locations that would be cool. ill get back to you tomorrow after ive checked the igniter and coil.

j3pz 05-01-2007 02:12 AM

ive searched for a diagram for grounds but with no luck. in my search however i located the location of the important grounds:

1. from intake manifold to battery
2. from body to battery (near fuse box)
3. from transmission to body

i also believe there is one from the head on exhaust side to fire wall.

supramacist 05-01-2007 04:32 AM

This could be as simple as a can of heat in the gas tank.

Your tank has a drain plug. Get rid of as much of the old gas as you can. Save it for your mower.

Or add two cans of HEAT, shake the car around a bit and give it 15 to 20 minutes and see if she fires.

I think you have old, low grade gas gone bad.
Just a guess.

Toyota87Supra 05-01-2007 05:23 PM

alright i now know why it doesnt start but now i need to know why it isnt getting any spark. it has new plugs and wires and everything is connected. ive checked the power going to the coil pack and it is fine so that may be the problem. anyone know the resistance for the coil pack offhand.

dcrusupra 05-01-2007 06:22 PM

Actually yes, lol. .3-.5

supramacist 05-01-2007 06:43 PM

I have a stock igniter off of my 91. I replaced with a blaster coil.

It worked fine, never missed. I'll sell it to you, make me an offer.

I'll even hook you up with pics.

j3pz 05-01-2007 08:32 PM

ignitor? they are diff from coil packs. im confused as to what you are talking about. the ignitor on a turbo is behind the fuse box, is that what you replaced?

supramacist 05-01-2007 08:49 PM

I'm speaking of the coil in the ignition system.

Did I just totally miss the boat here or what?? I thought I was on topic.
Long day building the supra.

Toyota87Supra 05-01-2007 11:18 PM

the igniter is fine cause theres power coming from it to the coilpack i think it may be the coilpack that is having problems cause there is no power coming from it to the spark plugs.

Toyota87Supra 05-01-2007 11:33 PM

the power goes from the battery to the igniter(behind the fuses), then the igniter goes to the ignition coil(behind the brake booster) and the coilpack(on top of engine above spark plugs) from th coilpack comes the high tension cords(aka spark plug wires) into the spark plugs.

j3pz 05-01-2007 11:34 PM

ok you said ignitor but meant coils. gotcha now

Toyota87Supra 05-01-2007 11:41 PM

according to my multimeter every thing from battery to spark plugs in in excellent condition, there is power to everything and the resistances are fine, any other reason why i cant get spark?

j3pz 05-02-2007 12:39 AM

im having the same problem with mine. got 12v to the coils, coil resistances arent quite in spec but are all consistant (too much of a coincidence that all three are bad, also found someone on supramania with similar problem and ruled it out), cps resistances with in spec. the only things i couldnt do were the secondary test for the coils and the second test for the ignitor assembly.


ive taken my wire and plug all the way to the battery to ground it and still no spark. if you figure it out, lemme know

Toyota87Supra 05-02-2007 02:36 AM

It finally starts again. i sprayed starting fluid right down in the spark plug hole and it started up and ran for a few seconds. I thought the gas was bad so i drained it and it was like a dark yellow color so i am goin to get some new gas tomorrow. Im not sure if all the spark plugs a giving spark but ill let you know tomorrow when i get new gas.


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