I think it should be 159 inch pounds +/- 9 inch pounds.
I made the same mistake when I first looked at the specs that were in my service manual.
Here is what my manual says.
SPECIFICATIONS
Connecting Rods
Item New Specification Wear Tolerance
1. Side Clearance 0.05—0.41 mm 0.8 mm
(0.002—0.016 in.) (0.03 in.)
2. Connecting Rod Cap Nut Torque:
B43E, B43G, B48G, 18 ± 1 N•m
P218G, P220G Engine (159 ± 9 lb-in.)
3. Connecting Rod Cap Nut Torque:
T260 20 ± 1 N•m
(177 ± 9 lb-in.)