Resolved 2G crank but no spark frustration

[avaien]

My car is a 99 GSX w/ECMLink and a 6bolt swap. I have changed almost everything on this car and went to fire it up, the car cranks but I do not have any spark.

After checking a lot of wires, pin 82 on my ECU shows ground on my power probe. As I understand this should be the ignition 12v power that ultimately goes to the coils. I traced that whole wire circuit from the PTU > coils > VSS > fuel pump relay > blue plug behind radio to end up with the ground still coming from the ECU pin.

I swapped in my 99 black box ECU and it does not read ground on pin 82. Do I need to keep inspecting from the ECU > ignition switch?

PS. I thought I had fixed it problem when unplugging stuff and was getting 6.1v on pin 3 at the PTU, which is it's 12v source.

 

[steve]

Thanks that helps a bit.

You can see that the blue wire comes from pin 2 of the cam sensor connector (A-81) and now runs to pin 1 of the 1G CAS which is the camshaft signal on it.

Since the triangle connector on the extension harness for the crankshaft sensor fits into the factory wiring connector (A-04) the wires for the signal (2) and ground (1) can get swapped if your not careful. I would have expected the black/red to be the power, the black to be ground, and the black/yellow to be the crankshaft signal but perhaps they got swapped somewhere along the way.

Here's the factory triangle connector and you can see where the Blue/White wire runs to pin 2. When you plug into it and flip it over it will look like that's pin 1 but it isn't.

 

[avaien]

I turned the BISS back about 3 turns and turned the key to START. Fired right up and idling. I have an oil leak near my filter housing so I turned it off.

 

[avaien]

Continuing my progress here! I have an exhaust leak in my downpipe to fix now.

 

[miliman13]

I turned the BISS back about 3 turns and turned the key to START. Fired right up and idling. I have an oil leak near my filter housing so I turned it off.

mark as resolved; And make conclusion clear, solution was biss screw or set of other steps? so others can benefit from future readings.

 

[avaien]

I figured out my spark issue. I added my conclusion in post #23.

RESOLVED: I had 4 issues I fixed to get my spark

1. A white harness connector behind the radio, fixing that connection gave me my CEL.
2. My OBD2 diagnostic port was not making consistent connection.
3. 1g CAS was incorrectly installed upside down
4. Engine harness CAS connector, I swapped Pin 2 and Pin 4.
EXTRA 5. Car fired spark now, rough idle. I backed out the BISS and the car kept itself running and I am going to start working on the idle.

 

[avaien]

mark as resolved; And make conclusion clear, solution was biss screw or set of other steps? so others can benefit from future readings.

I have looked all over but I cannot find any option to edit my first couple of posts anymore, so I cannot figure out how to mark the thread resolved.
I tried this but do not have any drop down box. The first post I have the option to Edit anymore is #17. I am confused.

 

[19Eclipse90]

I believe the option to edit posts goes away after a certain amount of time.

You can always report the thread to the site staff to mark it as resolved for you.