Hey guys, been having a bad knock retard issue with my 2004 rcsb 1500 LQ9. It has a 224 230 cam, P&P 317's, FBO, UD pulley, built trans, 3600 stall, 4.11 gears and a polished TB. I will post a link to my thread on hptuners forum. I have all the logs and more info on the truck including the tune there. I am definitely stumped with this one guys and any help will be greatly appreciated.

Here is the link to my post on HP Tuners forum:

Knock retard issue LQ9.

The truck was tuned at Futral 3 years ago. I recently purchased it a few months ago.

Thanks,

Erik

 

try this. knock retard should be gone now.

the airflow tables look crappy IMO, so if your KR is still there I would verify AFR with a wideband.

also i've tuned quite alot of LQ9's and never seen one that likes more than 27 degrees of timing on such a mild cam with little overlap yet, and that is on 93 so i dropped yours to 26ish.

good luck