1992 Toyota Supra Starting Issues

[UpbeatFish]

i just bought this supra and i tried removing the factory alarm.
i removed the anti theft black box.
grounded the blue and orange wire going to the connector thats connected to the black box

i also did the 30 amp relay mod
(connected power from bat to relay. neg to ground. ignition to relay. relay to starter)


the car cranks and cranks perfect . then starts after about a minute of attempted starts

and after it starts i must rev to about 2000rmp to warm it up. if not it stalls
after warm it drives perfetly

i drove it today after this process
when i got home
i tried starting it again and now it just cranks with no start.

has anyone has this problem too?
im going to post a video how the continuous cranking then starting


thanks

 

[zachm611]

is it getting spark while cranking?

 

[UpbeatFish]

is it getting spark while cranking?

i didnt check all of them but as soon as i saw the bottom sparkplug wire sparking i was quick to assume that they all are getting good spark

so the answer is yes
=]

 

[Nick M]

i just bought this supra and i tried removing the factory alarm.
i removed the anti theft black box.
grounded the blue and orange wire going to the connector thats connected to the black box

Why did you remove the noise maker? Just wondering.

i also did the 30 amp relay mod
(connected power from bat to relay. neg to ground. ignition to relay. relay to starter)

Your car had a starter relay already.

then starts after about a minute of attempted starts....and after it starts i must rev to about 2000rmp to warm it up. if not it stalls
after warm it drives perfetly

So pull codes. You can also ground the cold start injector time switch and see if it starts faster. And unplug the ECT sensor and see if it starts and runs better. Check both of those seperate and together.

 

[UpbeatFish]

Why did you remove the noise maker? Just wondering.




Your car had a starter relay already.



So pull codes. You can also ground the cold start injector time switch and see if it starts faster. And unplug the ECT sensor and see if it starts and runs better. Check both of those seperate and together.

i did the. 30 amp relay mod and i can finally start my car with the key. and no i didnt remove the nose marker cuz i couldnt find it. at all.

im going to check out the grounding of the csi. and where is the ect sensor.
thank you

 

[UpbeatFish]

Here is a post of my car trying to start it for the first time. this is about 30 secs of cranking already.

as you can see it starts

http://www.youtube.com/watch?v=_gMCV30sZnY

 

[CajunKenny]

I think you probably have two issues. Has the car always done this or just since you did your mods?

At the beginning of your vid, it almost sounded like the notorious CPS wire problem. I'd give it the 'CPS Wire Shake' and see if that helps.



BTW: Fan Shrouds are your friend!

 

[UpbeatFish]

I think you probably have two issues. Has the car always done this or just since you did your mods?

At the beginning of your vid, it almost sounded like the notorious CPS wire problem. I'd give it the 'CPS Wire Shake' and see if that helps.



BTW: Fan Shrouds are your friend!

its always done this but before i use to start the car with a wire

and with the mod i can start it with the key now

i am not too familier with the cps wire
im a noob

can you help me out?

 

[CajunKenny]

There are wires that run across the valve covers right behind the Cam Gear Plate. It's toward the front of the engine. Basically, wiggle any wire that you see. Don't jerk on them like you're trying to start a lawn mower though!

The CPS is on the passenger side of the engine toward the front. It is mounted on the side of the head kind of behind the thermostat housing. It has a black plastic top on it.

Hope that helps.

This sounds like a scary setup by the way... I'm glad it's in your hands now so you can do things right and treat a Supra the way it ought to be treated!

 

[UpbeatFish]

There are wires that run across the valve covers right behind the Cam Gear Plate. It's toward the front of the engine. Basically, wiggle any wire that you see. Don't jerk on them like you're trying to start a lawn mower though!

The CPS is on the passenger side of the engine toward the front. It is mounted on the side of the head kind of behind the thermostat housing. It has a black plastic top on it.

Hope that helps.

This sounds like a scary setup by the way... I'm glad it's in your hands now so you can do things right and treat a Supra the way it ought to be treated!

thanks im going to record me trying all these things
thanks for you help


and trust me
i will take care of this baby :love:

 

[UpbeatFish]

i got code 12
RPM Signal

Diagnosis
No "NE" or "G" signal to ECU within 2 seconds after engine has been cranked.
Trouble Area
Distributor, or CPS, circuit
Distributor or CPS
Starter signal circuit
ECU


and i got code 22

22 Water Temp Sensor Signal

Diagnosis
Open or short circuit in water temp sensor signal (THW).
Trouble Area
Water temp sensor circuit
Water temp sensor
ECU

 

[UpbeatFish]

i got code 12
RPM Signal

Diagnosis
No "NE" or "G" signal to ECU within 2 seconds after engine has been cranked.
Trouble Area
Distributor, or CPS, circuit
Distributor or CPS
Starter signal circuit
ECU


and i got code 22

22 Water Temp Sensor Signal

Diagnosis
Open or short circuit in water temp sensor signal (THW).
Trouble Area
Water temp sensor circuit
Water temp sensor
ECU

i just checked again after fixing some wires that were loose
and i have no codes anymore


help anyone?

 

[UpbeatFish]

i think i found the problem
when ever i crank the car there is no spark. there was spark before but now there isnt any

someone said to ground the coil packs

and i was looking where can i find the origal grounded wire but i cant spot it
only the female and male connected to the coil pack

where is the grounded wire

 

[CajunKenny]

The coil pack ground wire is on the passenger side, front of the coil pack bracket and goes almost directly down and bolts to the head. If you have a volt meter, check the continuity of the wire.

Something else I noticed (you may have already fixed this) is that when you turn on your key, your RPM needle doesn't stay at zero. Does it still do this?

 

[Nick M]

You won't have spark without a pick up signal. Or fuel.

did the. 30 amp relay mod and i can finally start my car with the key.

That is fine, but adding a relay didn't help start the car. I was just curious. Good to hear it cranks over now.

and no i didnt remove the nose marker cuz i couldnt find it. at all.

I don't know what you are talking about, so don't worry about it.

 

[UpbeatFish]

me and my friend clean some wires and put new ones and i notice there isnt any spark comming form the ignition coil?


is there any troubleshooting ideas to get it working..again

when i crank the rpms dont move....

HELP!!:1zhelp:

 

[CajunKenny]

What wires did you clean and which one's did you replace?


Make sure you don't have spark by doing this:

http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?Section=IG&P=10

and...

http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?S=IG&P=3


Then check for fuel by doing this:

http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?S=FI&P=71

You don't have to do this in this order either.

 

[Nick M]

me and my friend clean some wires and put new ones and i notice there isnt any spark comming form the ignition coil?


is there any troubleshooting ideas to get it working..again

when i crank the rpms dont move....

HELP!!:1zhelp:

i got code 12
RPM Signal

You won't have spark or injection without a signal indicating engine position and speed.

Check again and see if the code came back.

 

[UpbeatFish]

damn. there is no power going to the ignitor wtf!!

doesn anyone know what could be wrong please help man

 

[UpbeatFish]

loose wire in the wire pipe thing next to the alternater
runs good now
needs timing