Resolved 90 laser wont start

[wolf alchemy]

I k ow I shouldn't post here, but all my DSM friends have no clue what's wrong. She cranks beautifully(sounds better than she ever has) I'm quite certain there's fuel being sprayed into the block(checked with q-tip) and there's no spark. I bought a new coil pack and no difference. I was told the cas by auto zone, but the one on the car is in way better condition than the other two I have.(looks to be a year or two old. Approximating). So how can I test my coil pack resistor. Or any one have any ideas?

 

[92AWDHX40]

grab a chiltons book and check no start here lots of information.

 

[wolf alchemy]

I forgot to add I already loomed through the no start tech article. And I forgot I had one of those....now to find it.

 

[mitsubishikid]

Did you check the ignition power transistor, could also be an issue inside the the ecu, or maybe a shorted out wire harness or wire connector.

 

[C'LO]

Do you have any spark from any of the 2 coils?

 

[wolf alchemy]

Absolutely no spark.

 

[wolf alchemy]

Could it be a fuse?

 

[97 eclenger]

cas. it sends both cam and crank signal. the spark issue is the crank signal. if it sends no signal you'll get no spark. it also runs the fuel pump. i had the same issue in my 3000gt. turned over great. just no start. had fuel but no spark

 

[wolf alchemy]

I have removed my valve cover so many times. Pretty sure I'll need a new gasket. Lol....I have a Shitty looking old cas I can try...

 

[10's or bust]

AutoZone or O'Reilly can check the coils to rule them out also check the ignitor out or power transistor as it is called out as well if all check out then check out the CAS with a multimeter for a signal by connecting ground and signal wires to it while rotating it and verifying changing signals or wavelengths.

 

[wolf alchemy]

I already tried installing brand new coil pack. Don't have a 1.5 volt battery to test resistor box.

 

[97 eclenger]

are you getting power to the sensors?

 

[wolf alchemy]

I believe so? I tried a second cas, and still no spark at all....maybe try a second ecu since the one in my car needs the caps redone? Also I really don't know how to use this analong volt meter..

 

[97 eclenger]

this is why i keep back ups for both my cars . caps could be gone. pull the ecu and inspect it and smell it. sounds odd but a bad ecu will have a fishy smell

 

[wolf alchemy]

I know about the smell. Lol. A DSM in a autoyard had a bad ecu....so other than that it was a working car I believe.....unroll it was picked apart body and tire wise.

 

[wolf alchemy]

Well....think I finally found the issue.....

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[97 eclenger]

sure thats not just the silicon coating?

 

[wolf alchemy]

Isn't that rust under a cap?

 

[wolf alchemy]

And the clear stuff isn't all over the board. It seems centraled around the caps.

 

[97 eclenger]

wasnt looking at that. try another ecu and see if that was the problem

 

[wolf alchemy]

I did.... XD no clue. Same thing, but....I think.....it was slightly ignighting. Or I flooded the engine....I'll try tomorrow and see what happens.

 

[Stephen227]

You can mail your ecu off to ecmlink and have them look it over for a modest fee.

 

[wolf alchemy]

I'll have that done when I get it chipped in the future.

 

[19Eclipse90]

I already tried installing brand new coil pack. Don't have a 1.5 volt battery to test resistor box.

A 1.5V battery is a AA battery. You would only need this to test the power transistor unit. The resistor box is for the injectors -- completely unrelated to spark.

Have you done the other checks outlined here for no-spark condition: How To Diagnose A No-Start? What are the results of your tests? Does the ECU show any stored codes? Does it light up for 5 seconds like it is supposed to at ignition switch "ON"?

 

[wolf alchemy]

Ecu does light up for 5 seconds like you said. My ecu light never flashes codes. I have to use a analog volt meter or I use my 1glink Palm reader for codes. And yes. I already went through the entire diagnosis no start thread.