MKIII wont start

jubacia · 01-25-2010, 10:11 PM

So i have a N/A supra and it wont start.

I checked the timing and the cps. Still no go. There is no spark. What should i check?

Any imput/suggestions would be greatly appreciated.

Thanks,

Andy

Green7mgte · 01-26-2010, 12:52 AM

hi. please search forum using key words such as. "no start" or "no spark" and see what that yields you first.

thank you.

Here I did a little digging for you:
http://www.toyota-supra.info/forums/...-question.html
------------------
http://www.toyota-supra.info/forums/...-problems.html
This second one was started by a goober but still lists some good reference sites and troubleshooting.

jubacia · 01-29-2010, 06:06 PM

Thanks for that link.

Now I'm going to head out and check all of that and see what it is.

Thanks,

Andy

Green7mgte · 01-29-2010, 06:26 PM

yep. no start is either no spark. fuel or compression. those links should trouble shoot each. simple question i know but did you check your battery?

cre · 01-29-2010, 06:28 PM

Another simple question... is the engine cranking over or does nothing happen when you turn the key?

jubacia · 01-30-2010, 07:24 PM

It turns over, we can smell the nasty fuel in it. we got it to where it almost wanted to start but now it just turns over.

There is a buzzing noise coming from the fuel pump relay, could that be a major problem right now?

When ever we have the battery hooked up, constantly makes noise.

cre · 01-30-2010, 07:51 PM

The fuel pump relay shouldn't even have power if the ignition's off, so I fail to see how this can happen anytime the battery is connected. Is it happening anytime or just with the ignition on?

The relay is a definite possibility. You can jumper FP and B+ in the diagnostic box to power up the pump... this WILL power it full time though, so it's not a solution, just a diagnostic. This bypasses ALL of the power controls in the fuel pump's circuit.

jubacia · 01-31-2010, 12:01 AM

It doesn't matter if the key is on the "on" position or if the key is out of the ignition. its on when the battery is connected.
The bad part about this is that we just got the car as is. We didn't take apart the motor to replace the head gasket. We do not know what the people did to the car before it came to us.

We switched out the ignitior and it made no difference. We are thinking its the distributor pick up but we have no idea how to test the distributor.

We are completely stumped on this.

Thanks

Andy

cre · 01-31-2010, 01:58 AM

Test the fuel pump relay for power with the ignition off... If they got 'creative' with hacking together some crap to 'get around' a problem instead of fixing it they could have killed any part of that circuit.

Did you try jumpering FP? (If not, DO SO)

I think you need to decide if you're missing fuel or spark BEFORE you start paying for replacement parts.

1_BAD_MK3 · 01-31-2010, 08:33 AM

i had the same problem but all i needed was a battery could be that

01-25-2010, 10:11 PM	#1
jubacia Stock Join Date: Aug 2009 Location: Brighton, Co Posts: 7	MKIII wont start So i have a N/A supra and it wont start. I checked the timing and the cps. Still no go. There is no spark. What should i check? Any imput/suggestions would be greatly appreciated. Thanks, Andy

01-26-2010, 12:52 AM	#2
Green7mgte Supra Forum Moderator Join Date: Nov 2009 Location: Green-Ohio Posts: 1,297	hi. please search forum using key words such as. "no start" or "no spark" and see what that yields you first. thank you. Here I did a little digging for you: http://www.toyota-supra.info/forums/...-question.html ------------------ http://www.toyota-supra.info/forums/...-problems.html This second one was started by a goober but still lists some good reference sites and troubleshooting. __________________ 92 Ma71 7mGTE Auto. SafcII Supra FAQ Supra MKIII FAQ Classified Section guidelines : Last edited by Green7mgte; 01-26-2010 at 01:00 AM.

01-29-2010, 06:26 PM	#4
Green7mgte Supra Forum Moderator Join Date: Nov 2009 Location: Green-Ohio Posts: 1,297	yep. no start is either no spark. fuel or compression. those links should trouble shoot each. simple question i know but did you check your battery? __________________ 92 Ma71 7mGTE Auto. SafcII Supra FAQ Supra MKIII FAQ Classified Section guidelines :

01-29-2010, 06:28 PM	#5
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Another simple question... is the engine cranking over or does nothing happen when you turn the key? __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

01-30-2010, 07:51 PM	#7
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	The fuel pump relay shouldn't even have power if the ignition's off, so I fail to see how this can happen anytime the battery is connected. Is it happening anytime or just with the ignition on? The relay is a definite possibility. You can jumper FP and B+ in the diagnostic box to power up the pump... this WILL power it full time though, so it's not a solution, just a diagnostic. This bypasses ALL of the power controls in the fuel pump's circuit. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

01-29-2010, 06:06 PM	#3
jubacia Stock Join Date: Aug 2009 Location: Brighton, Co Posts: 7	Thanks for that link. Now I'm going to head out and check all of that and see what it is. Thanks, Andy

01-30-2010, 07:24 PM	#6
jubacia Stock Join Date: Aug 2009 Location: Brighton, Co Posts: 7	It turns over, we can smell the nasty fuel in it. we got it to where it almost wanted to start but now it just turns over. There is a buzzing noise coming from the fuel pump relay, could that be a major problem right now? When ever we have the battery hooked up, constantly makes noise.

01-31-2010, 12:01 AM	#8
jubacia Stock Join Date: Aug 2009 Location: Brighton, Co Posts: 7	It doesn't matter if the key is on the "on" position or if the key is out of the ignition. its on when the battery is connected. The bad part about this is that we just got the car as is. We didn't take apart the motor to replace the head gasket. We do not know what the people did to the car before it came to us. We switched out the ignitior and it made no difference. We are thinking its the distributor pick up but we have no idea how to test the distributor. We are completely stumped on this. Thanks Andy

01-31-2010, 01:58 AM	#9
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Test the fuel pump relay for power with the ignition off... If they got 'creative' with hacking together some crap to 'get around' a problem instead of fixing it they could have killed any part of that circuit. Did you try jumpering FP? (If not, DO SO) I think you need to decide if you're missing fuel or spark BEFORE you start paying for replacement parts. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

01-31-2010, 08:33 AM	#10
1_BAD_MK3 Stock Join Date: Jan 2010 Location: RIALTO Posts: 18 Blog Entries: 1	i had the same problem but all i needed was a battery could be that

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