420A no spark from any cylinder

[reign 1]

I changed my head gasket, now after putting my motor back together . It isn't getting spark from any of the plugs

 

[kstoopsdsm]

Check ignition coil and connection.

 

[reign 1]

I checked all connections to the coil, they are good. could the coil go bad just sitting on my work bench for the time it took to change my gaskets?

 

[razrman8]

^+1
Checkk your coil, plugs and wires. If you have not gotten new plugs and wires you may want to think about it. They usually dont set you back too much. If you do get plugs, make sure that they are correctly gapped. Also MAKE SURE YOU HAVE GOOD CONNECTIONS. I can't stress that enough. I have read too many posts about a misfire or something to that affect and all because the connection was bad. But if you are not getting spark to ANY of the plugs, I'd lean towards coil.

 

[kstoopsdsm]

I checked all connections to the coil, they are good. could the coil go bad just sitting on my work bench for the time it took to change my gaskets?

Its very well so it could have. If you have the use of a multi meter, check the connection between the two prongs, the resistance should be somewhere between .51-.61 ohms or somewhere of the sort.

 

[razrman8]

Your coil could be bad just because it wanted to crap out on you. Test it. Kstoopsdsm will tell you how

Scratch that, already did.

 

[reign 1]

plugs and wires are new and the gaps are right.

 

[razrman8]

Are you getting spark from at least one or absolutely none?

 

[kstoopsdsm]

plugs and wires are new and the gaps are right.

Then check the resistance between the coils. This will tell you if the coil is bad or not.

 

[razrman8]

No spark at all to any plug is more than likely a bad coil.
Spark on one or a couple and not the others would probably be a connection issue.

 

[reign 1]

Are you getting spark from at least one or absolutely none?

none

 

[rlacasse1]

I can't remember what it is called for the life of me, maybe the transistor or somesh!t. Can't remember. But it's kind of off to the side bolted to the intake manifold under the coil pack if I remember right, black thing that is fairly thin. Make sure it's plugged in. If it's not you won't have spark.

 

[kstoopsdsm]

none

I would still check the resistance between the coil prongs. It will tell you for sure or not if your coil is bad before you go spend money you dont need to.

 

[razrman8]

^Good idea. Considering you had the head off, you may have unplugged it. And if that is plugged in and you still aren't getting spark. I'd say the coil

But like kstoopsdsm said, checking it would be your absolute best bet. If you are unsure of how to test coil, I'm sure there is a tutorial on it

 

[reign 1]

I can't remember what it is called for the life of me, maybe the transistor or somesh!t. Can't remember. But it's kind of off to the side bolted to the intake manifold under the coil pack if I remember right, black thing that is fairly thin. Make sure it's plugged in. If it's not you won't have spark.

i have a 2.0 nonturbo, where should i look for this connection? how many wires are on this connection? i did unplug alot of stuff.

 

[razrman8]

Oh, well then your profile isn't updated correctly. Please update this for correct further diagnosis.
This should help you
http://www.dsmtuners.com/forums/articles-electrical-wiring/58091-2gnt-checking-coil-pack.html

 

[kstoopsdsm]

There should just be one connection that plugs into the coil pack from what I can remember.

 

[rlacasse1]

Oh shit, I didn't even realize that this was a n/t. Screw what I said in my last post.

 

[razrman8]

There should just be one connection that plugs into the coil pack from what I can remember.

Yes, just one plug in on the 420a coil pack. So you can't really miss it. Make sure that the plug is snug and snapped onto the coil itself

 

[reign 1]

Oh shit, I didn't even realize that this was a n/t. Screw what I said in my last post.

its a nonturbo 2.0, but it has an aftermarket turbo on it

 

[kstoopsdsm]

That wont matter with the coil pack getting spark or not.

 

[razrman8]

Regardless, whether you have a 420a or 420aT, your coil is probably in the same spot.

 

[kstoopsdsm]

Also is the CEL coming on when you put the key to the start position?

 

[razrman8]

Did you look at this http://www.dsmtuners.com/forums/articles-electrical-wiring/58091-2gnt-checking-coil-pack.html <-----

 

[rlacasse1]

Ok then, I didn't realize it was a 420a not a 4g63.