No spark

[markd1037]

Okay, after lots of testing I'm still not able to start my car.

The problem is that I have no spark. I have 12v and Ground at all the coil packs. I have checked continuity between the ECU and Power Transistor (PIN 1,2,3,11,20). I can feel the Ignition coil relay click on. Also I bought another Power Transistor from Ebay, guessing it would be that but I still have the same problem.

I have tested both Power Transistors units as described in the S13 Manual (page EF & EC 125) and neither one have any continuity. Maybe I have two bad ignitors???

Is there anything the ECU has to see before it can send spark. My O2 and detonation sensors are not connected, but I don't think they are required. Please help, any advice would be appreciated.

[float_6969]

Could be 2 bad ignitors. they're failure prone. Have you pulled codes from the ECU?

[boost_boy]

Okay, after lots of testing I'm still not able to start my car.

The problem is that I have no spark. I have 12v and Ground at all the coil packs. I have checked continuity between the ECU and Power Transistor (PIN 1,2,3,11,20). I can feel the Ignition coil relay click on. Also I bought another Power Transistor from Ebay, guessing it would be that but I still have the same problem.

I have tested both Power Transistors units as described in the S13 Manual (page EF & EC 125) and neither one have any continuity. Maybe I have two bad ignitors???

Is there anything the ECU has to see before it can send spark. My O2 and detonation sensors are not connected, but I don't think they are required. Please help, any advice would be appreciated.

That's an easy fix! You car is not wired correctly. If y ou wired it correctly it would crank right-up on the first try. Since you say there's no power at the power transistors, start with the wiring work you or whomever did in the front right corner of your car.

[markd1037]

I tried to pull a code from the ECU. The red and green light just stayed lite the whole time and never blinked. ??? I opened up the ECU and everything inside looks ok. No swollen capacitors or burn marks anywhere.

[markd1037]

Has anyone ever tried the Power Transistor check in the FSM. Its hard to believe I have two bad power transistors. Can some check a known good one and see what you get.

[boost_boy]

Has anyone ever tried the Power Transistor check in the FSM. Its hard to believe I have two bad power transistors. Can some check a known good one and see what you get.

Dude,

You're not listening. Your engine's harness is not wired correctly which means that it's a major possibility that your power transistors aren't bad. As a matter of fact, they don't just "all of a sudden" stop working. Pulling codes is not your answer at this pont because your engine hasn't run yet, so the diagnostics are limited. Refer to my 1st post and get back with us when you do. Good luck!

[Wiggely]

i was having a problem with my igniter not getting power to my swap so i soldered the big blue red wire to the big black red wire on the right front plug by battery tray it seemed to run power to the coils and igniter car fired right up it may work for u

[markd1037]

Sounds like your ignition coil relay is not working. I can feel mine click and I have 12v at both sides. The Blue/Red wire and Black/Red wire go to the ignition coil relay. I'm still thinking it has something to do with the wiring to or from the power transistor or the power transistor itself. Thanks

*ignore the circled resistor
http://i114.photobucket.com/albums/n275 ... wiring.jpg

[markd1037]

Okay did some more testing, still no spark. I found out that you are actually suppose to get some resistance when testing the continuity of the power transistor but I could not find what range of Ohms you are suppose to get. I checked the coil packs, the neutral switch, the starter signal, ECCS relay. I checked all the power and grounds to the ECU. Everthing is in place but still no spark.

[markd1037]

Anyone have a CA18DET harness for sale. email me at [email protected]

Does anyone have anymore suggestions????? I checked everything I could think of, even got another ECU. STILL NO F'IN SPARK. I guess the next thing to try is just buy another wiring harness. The one I have is all hacked up from the previous owner and from me.

[float_6969]

It really sounds like you don't have the wires behind the battery wired correctly. Where did you get your wiring info from? Are you 100% sure you've got 2 big wires connected to one big wire? (L/R -> B/R & L/R) IIRC.

[IggyEGuana]

double check that wiring but maybe bad CAS. injectors clicking while cranking?

[markd1037]

Replaced the CAS, still the same problem. No spark and no fuel.

I really want to know why the ECU RED and GREEN light stay light on ignition. Does anyone know what that means. I have checked my wiring a hundred times I cant find anything wrong.

[float_6969]

No spark OR fuel? Remove the CAS and rotate it by hand and see if the injectors fire. If they don't, make sure you've got 12v+ @ the solid colored wire at the injectors.

[markd1037]

I checked the injectors with a noid light and got nothing, its not getting 12v. Correct me if I'm wrong but I dont think you can check for 12v with a multimeter, the 12v happens to fast.

[boost_boy]

If you say you've checked the wiring a hundred times and are sure everything is correct or semi-functional, what makes you think the ecu is any good? Bad wiring can result in a blown ecu, but it's extremely difficult for us to properly diagnose your issues when all we have to go off is what you tell us.

[markd1037]

I've tried two ECU's and they both do the same thing. I hope I didnt fry both of them.