supra wont run . Why?

[Supraman]

Hey everyone I have a 1991 Supra Turbo . I added a K&N air filter, 3in downpipe ,Greddy Type S BOV ,manual boost controller and fuel cut defender. I turned the boost up to 12 . I took it out ran it a couple of times seemed to do fine . Then I had it at about 50 mph planted my foot it boosted to 12 then cut out. I looked down and the rpm gauge bounced a couple of times below 1000 rpm then nothing. It wont start .When I tried to start it it would sound like it wanted to start but would not. I checked compression on all cylinders and they are around 125 psi. Then I checked the fuel pump it was fine. So know Im stumped. I read it had a cam position sensor. I dont think the timing belt slipped . I checked the belt and it looked good. And I dont know if the sensor would shut down the motor . I also pulled a plug and it had no spark when I turned the car over and the plugs are new .Any helpful suggestions ? Thanks

[300hpvision]

about how long have you installed the new stuff? if not too long it might be defective. also take it on the dyno run and see if it happens. ( if it starts that is.)

Not to long it was the first time with everything in place. I drove it about 10 ml before it cut off.

[suprra_girl]

Originally posted by 300hpvision@Feb 15 2005, 01:36 PM
about how long have you installed the new stuff? if not too long it might be defective. also take it on the dyno run and see if it happens. ( if it starts that is.)

please stop telling ppl to dyno their cars and see if it happens



Supraman: it could be that you blew off intercooler piping, you installed a fcd you say? did you install it correctly, did the engine check light come on when it all of a sudden cut, what sort of fcd did you buy? how many wires are there on it?
also if your compression is only 125 you need a rebuild, the minimum in the manual is 128...
the bov you bought does it vent to atmosphere?

i wouldn't think your timing has altered.... check this link to verify your cps timing.. www.supra.co.nz/timing.htm
do a diagnostic.... http://www.toyota-supra.info/forums/index....ct=ST&f=2&t=333

let us know how you get on

I put on a HKS fcd it had six wires I believe . I checked them several times before I buttoned every thing up . I checked the the intercooler lines and they all looked good. And to be truthful I was so in shock that I didnt even look for an idiot light .Now I dont have spark could it be my coils went out or maybe the cam position sensor. Thanks

And yes the bov does vent to air. And the compression I figured might be a little low. I was supposed to do it with the motor warm. But of course I had to do it a couple of weeks later. So there probably wasnt much oil on the rings. Also its an automatic.

[suprra_girl]

do a diagnostic on your car and lemme know what codes you get... go and check your fcd and double check the amount and colour of wires you have and what they go to

diagnostics is in the faq section

[Supraman]

Ok the fcd has five wires red goes to power, black of course ground ,yellow goes to ecu for air flow signal, the white wire goes on the wire running from the ecu and the green wire that runs to the rpm source .Also I would do a diagnostic , but my manual does not show which is which on those connections except for the test of the fuel pump. And if the cover had the markings it long gone. So if you can direct me it would be a great help.

[suprra_girl]

ok mint fcd is installed correctly...

www.supra.co.nz/timing.htm

on there you will see the diagnostic box and the arrows on it are T & E1 check in the faqs for diagnostics

[Supraman]

Well I did the diagnostic and all it did was flash continually. :huh: