Crank but no Spark

[AdrianPria]

Hello! I was searching on the forum but i didn't found anything clearly, I have a 95' GST the engine crank but i don't have spark, I changed Coils and ECU. I tested the Power transistor and its ok, also tested the CAS seems to be working perfectly, with key on +12v on red wire, continuity to ground and +5v then when i crank the engine the voltage varies from 1.5v and 3v (Works perfect) Now the Crank sensor I have the same voltage with key on, +12v ground and +5v but when i crank the engine the voltage goes down only to +4.8v and stay there without any variety (The range is +0.4v - +4v) So I dont know if this is the problem, the difference is only +0.80v. Any suggestion?

Thanks very much.

 

[combs-dsm]

just wondering. but have you checked for spark coming out of the new coil? do you have a spark tester?

 

[DSM_GSX01]

Make sure the CAS behind your intake cam gear is not broke or have any oil on it when i had oil on mine it did not start. I cleaned it off with brake cleaner and just let it air dried. Then a month later I broke it. Also make sure the wires dont have a cut into it from the cam gear.

 

[AdrianPria]

just wondering. but have you checked for spark coming out of the new coil? do you have a spark tester?

Yes i did, but with a screwdriver hehe I dont have a spark tester.

Make sure the CAS behind your intake cam gear is not broke or have any oil on it when i had oil on mine it did not start. I cleaned it off with brake cleaner and just let it air dried. Then a month later I broke it. Also make sure the wires dont have a cut into it from the cam gear.

The CAS is working perfectly, I think the problem is the CPS because there is no voltage variety while cranking engine, just 0.20v (4.8v) I did this test btw

http://www.dsmtuners.com/forums/152302942-post5.html

This is a pic of my CPS

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[combs-dsm]

The cracks in the body of your CPS look pretty bad. If ir was me id try and get a new one.

 

[AdrianPria]

I don't know if swap a 1G CAS and eliminate those or buy a new CPS

 

[DSM_GSX01]

yea try a new one that looks bad to me also.

 

[AdrianPria]

upp!!!!

I swaped a 1G CAS and problem solved hahaha