5.7 standalone pcm issue

[Acerulz]

Good day, I just completed a l31 standalone system, runs great but the problem is that when I try to set the cam/crank sync or any other special test through the scanner, the pcm is saying the trans is in gear and wont let me complete the desired tests. How can I fool the pcm into thinking it's in park? I already tried hooking up to the clutch position circuit at the pcm and it did nothing. Is there any way to get by this? How does it send the park signal to the pcm?

 

[Awest623]

Good day, I just completed a l31 standalone system, runs great but the problem is that when I try to set the cam/crank sync or any other special test through the scanner, the pcm is saying the trans is in gear and wont let me complete the desired tests. How can I fool the pcm into thinking it's in park? I already tried hooking up to the clutch position circuit at the pcm and it did nothing. Is there any way to get by this? How does it send the park signal to the pcm?

There should be a ground wire. Grounded in park. You could wire it to the neutral safety switch, clutch, or whatever.

Sent from my Samsung S20 using Tapatalk

 

[Acerulz]

There should be a ground wire. Grounded in park. You could wire it to the neutral safety switch, clutch, or whatever.

Sent from my Samsung S20 using Tapatalk

I tried to ground out the clutch terminal on the pcm but it never changed state on the scanner.

 

[Awest623]

I tried to ground out the clutch terminal on the pcm but it never changed state on the scanner.

What ECU are you using?

Sent from my Samsung S20 using Tapatalk

 

[Acerulz]

What ECU are you using?

Sent from my Samsung S20 using Tapatalk

Black box