I recently purchased a 2006 Nissan forklift. It needs a bit of engine work. Cyl 1 has low compression due to an intake valve. I have found some references to the head bolt torque online, but just wanted to see if anyone had a service manual thy would be willing to share.
The forklift also has an e-27 error which seems to be ignition related. New coils and plugs will be going in once the head is fixed to hopefully cure this. What diagnostic software do these forklifts use? I know Nissan vehicles had the consult cables/ software.

I'd appreciate any help or insight.
Forklift is a MUGL02A30LV