i finally installed my new EM harness,car wont start,so i checked the coils, ist not getting any spark when checked everything else, come to find out the ecu was hot did i wire something up wrong

 

check your grounds.

 

try hitting it with a hammer

 

The coils may be fine, but it's the Crank Angle Sensor that tells them when to fire.

Don't know what to tell you about the ecu. Checking the grounds as suggested can't hurt. Double and triple check what you did and didn't connect to the harness to make absolutely sure it's in order.

 

yeah, ill do that tomorrow,thanks for the help

 

When the key is put to ON, the ENGINE fuse causes the MAIN RELAY to pull in and send power from the EGI fuses to the ECU. You go to START and the engine spins the CAS which in turn sends an electrical signal to the ECU which in turn pulses the IGNITORS in the Lead and Trail coil assy's to cause the coils themselves to send spark to the sparkplugs.

IF you go to START and you see the tach needle make very small bumps up and down while the enigne spins..............then there is spark and you don't know it.

So the ENGINE fuse and the EGI fuses have to be good for there to be spark plus the electrical connectors involved need to be connected up where their supposed to go.

Getting a digital meter out and checking out the ECU plugs pin by pin with the key On, in conjunction with the CONTROL UNIT pages of the FUEL AND EMISSIONS SECITON of the FSM can ID the problem if one exists.

 

yes! finally got it to start
problem was alternator plug was not plugged in, second i had the wrong pressure sensor
my problem now is that idle cant keep steady, i got it started couple times but after the 4th time it wouldnt start,
voltage keeps on bouncing from 11 to 13,tired jumping it with jumper cables but still wont
every time i crank it the tach bounces meaning i have spark (thanks to hailers info)

theres two pressure sensors,one in the engine bay the other behind the dash, my question is do i need both?

btw thanks to evreyone for helping me out

 

bttt.....

 

I'm going to use that one in class, next week. ... One question Soft rubber or Steel ?

 

the pressure sensor behind the dash is the ambient pressure sensor, i believe it is universal for all series and i rarely see them be of issue.