Swapped gen iv l9h 6.2l into gen 3 truck
Newbie to tuning need help on what needs to be changed for good starting point
L9h 6.2l
Tsp cam 228/228. 600/600
Swapped gen iv l9h 6.2l into gen 3 truck
Newbie to tuning need help on what needs to be changed for good starting point
L9h 6.2l
Tsp cam 228/228. 600/600
Did you use the converter box for the crank trigger?
Did you also drill and tap the block for the knock sensors?
At minimum you need to update the cylinder volume. Input the new injector data (all 4 main tables, not just the flow rate), increase the idle to 750-800rpm, add some base running airflow. Adjust the idle timing and lower the over/underspeed spark corrections tables to like +/- 8 degrees so it can swing a lot.
Then lots of tuning of the MAF and VE table with a wideband oxygen sensor.
2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.
If you don't post your tune and logs when you have questions you aren't helping yourself.
If the Gen 4 to Gen 3 Knock Sensor "adapter harness" that you purchased has 2 of the wires coming from the Gen 4 Knock Sensors, that then plug into the existing Gen 3 two wire Knock Sensor connector, and the remaining 2 wires coming from the Gen 4 Knock Sensors connect to ground (often via a ring terminal) - these do not work - and should not be sold.
You have two options regarding Knock Sensors.
The most simple - mount a Gen 3 Knock Sensor (single wire) to each side of the Gen 4 block.
To actually use Gen 4 Knock Sensors (2 wire) with a Gen 3 PCM (P01 or P59), requires running all 4 wires from the Gen 4 Knock Sensors to specific locations at the PCM connectors. Following this, highly specific PCM programming is required. Only a handful of people have actually sorted this out - and none will tell you how to do it.
I was unaware of that thank you for the info..I think I'll just relocate gen 3 into side of block