4g63t no spark

NotCarlsson · Jun 28, 2019

So last weekend I was out cruising. After that I parked the car outside my garage. Now almost a week later I were going to drive it into my garage soo replace some bushings.
But it won't start, I have no spark. I get fuel. The spark plugs gets wet with fuel.
I also have the Dynatek ARC-2 if that makes any difference. but that's been in the car for the past year with no issue.

Macgyver'sDSM · Jun 28, 2019

Try unplugging the arc2 and bypass it just to make sure it's not the problem. I'm running a arc2 also. It did fail once but I would get a backfire while trying to start the car. They do fail occasionally. From there it it is a guessing game. I would check the ecu see if you have any bad capacitors. Plenty of info and pictures on the web to look at for reference.

NotCarlsson · Jun 28, 2019

Macgyver'sDSM said:
Try unplugging the arc2 and bypass it just to make sure it's not the problem. I'm running a arc2 also. It did fail once but I would get a backfire while trying to start the car. They do fail occasionally. From there it it is a guessing game. I would check the ecu see if you have any bad capacitors. Plenty of info and pictures on the web to look at for reference.

I've tried with another ECU that I know works with my car with no progress. How can I bypass the ARC-2. I did not install it so im not 100% sure how it's installed.

1990TSIAWDTALON · Jun 28, 2019

"Should" be plug and play so unhook the unit and reconnect it to the coils, but hard to tell how anyone else has installed it.

NotCarlsson · Jun 28, 2019

1990TSIAWDTALON said:
"Should" be plug and play so unhook the unit and reconnect it to the coils, but hard to tell how anyone else has installed it.

The cabelsfrom the ECU was cut and wired too the ARC-2. So I have a Blue/Black, a Blue and a red cable that is supposed too goo to coil 1 / 2. But I'm not sure how it's supposed to go?

You must be logged in to view this image or video.

1990TSIAWDTALON · Jun 28, 2019

Dam. Wish more people would just make the proper adaptor harness and leave the cars connectors alone. I am lost on that one. One of the other members that is familiar with this will have to come to the rescue.

NotCarlsson · Jun 28, 2019

1990TSIAWDTALON said:
Dam. Wish more people would just make the proper adaptor harness and leave the cars connectors alone. I am lost on that one. One of the other members that is familiar with this will have to come to the rescue.

I've figured out that the blue is to the first coil pack, and the blue/black is too the second. But then there is a red one left, and both coil packs have 2 connectors. Maybe the red should go to both?

ThunderChild · Jun 28, 2019

I don't have the diagram handy on my phone, but I know there should be a power supply to both coils, maybe @luv2rallye or @dustyboner can help you with a schematic for the ignition system.

dustyboner · Jun 28, 2019

(red) coil side -- pin 3 -- (black/white) harness side

(blue) coil side -- pin 2 -- (blue/red) harness side

pin 1 (blue/black) coil side and harness side

You must be logged in to view this image or video.

NotCarlsson · Jun 30, 2019

dustyboner said:
(red) coil side -- pin 3 -- (black/white) harness side

(blue) coil side -- pin 2 -- (blue/red) harness side

pin 1 (blue/black) coil side and harness side

You must be logged in to view this image or video.

You must be logged in to view this image or video.

You must be logged in to view this image or video.

Cheers, now it works like a charm again.

The Top DSM Community on the Web

4g63t no spark

NotCarlsson

Macgyver'sDSM

NotCarlsson

1990TSIAWDTALON

NotCarlsson

1990TSIAWDTALON

NotCarlsson

ThunderChild

dustyboner

NotCarlsson

Similar threads

Latest posts

Build Thread Updates

Vendor Updates

Latest Classifieds