This is bugging the crap out of me!!

[madsupra88]

Alright guys here it is,

Drove my car for a week with no problem at all. next morning i go to drive it.......will not start.

The car cranks very strong but will not turn over. now ive searched for the past week and worked on the car and cannot get this thing to start.

things ive already done.

Checked for spark (good)
checked and swapped in a diff afm
swapped in diff EFI resistor pack
All grounds are good
Battery (good)
Alternator (good)
Compression is 140 psi across the board
Swapped in a diff TPS
Full Tank of gas
Fuel pump is good (aeromotive a1000)
Im getting fuell pressure at my regulator
I checked and made sure i have fuel at the rail
Swapped in a good wiring harness
Im getting voltage at the injector clips.
ALL fuses are good
All relays that i know of are good (swapped in a bunch of them)
New spark plugs and yes they spark.
After crankin i did check the plugs and they aredry (no fuel)


I did check to see if my injectors are making sound or pulsing. i get nothing their dead silent. so the only thing i havnt checked is my Injectors which i am takin a couple to get tested later on today. but it bugs me that how could all of a sudden 6 injectors stop working! I c

Also im getting a code 51.

Im lost and loosing my mind

Any help is appreciated.

thanks

-saif

 

[Rajunz]

Well, you know it can't be all 6 injectors, You have fuel at the rail, so it sounds logical that more than likely they are not getting a pulse from the ECU.

I would start here.

http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?Section=FI&P=83


http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?Section=FI&P=49

 

[hvyman]

ecu's rarley go bad on 7ms

 

[fonz87]

wiggle your CPS wire, and try starting it.

 

[DBN]

wiggle your CPS wire, and try starting it.

He already said he has spark...

 

[madsupra88]

ecu's rarley go bad on 7ms

Yea i tried that just to rule it out and still no luck

 

[madsupra88]

Well, you know it can't be all 6 injectors, You have fuel at the rail, so it sounds logical that more than likely they are not getting a pulse from the ECU.

I would start here.

http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?Section=FI&P=83


http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?Section=FI&P=49

I had an extra injector laying around, so i plugged it in to my harness and yo can feel the injector working! so the inj are gettin pulse.

Only thing i cn think of is redo the timing again.

 

[CajunKenny]

wiggle your cps wire, and try starting it.

+1 -- do this!!!!

 

[madsupra88]

+1 -- do this!!!!

My cps wires are hard wired. they are soldered together.(no clip)

 

[CajunKenny]

You could have an intermittent break in a wire. Did you wiggle the wires?

I have seen this more times than I can count. A mkiii drives somewhere then won't start. I would wiggle/move any wires that you can see.

It's easy...just do it!

 

[madsupra88]

I wiggled them and reinstalled my cps and still no luck, would the code 51 not let it start

 

[Enraged]

sounds like the problem I had, and it was the CPS wiring. I was having intermittent connection issues with it, wouldn't start. maybe repin the wires, or cut the connector and add a new one? you can get new stock connectors from a vendor in the misc vendor section i think

edit: http://www.supramania.com/forums/showthread.php?t=95933

 

[madsupra88]

Can someone take picture of this fusible link, i cannot find it in my car.

 

[madsupra88]

She runs!! i was lining up the cps wrong lol

thanks everyone!

-saif