P1605/P0013 Issues

Looking for some advice:
Started the truck about two weeks ago after sitting in the TX heat (105) all day, and noticed a rough start, erratic idle, then smoothed out - no further issues, no CEL. I ran the codes via BludDriver, and came back with

P1605 - Knock Control CPU
P0013 - "B" Camshaft Position Actuator Control Circuit Open Bank 1

I cleared them, and only the P1605 has returned. The truck has had a rough start/idle 2-3 more times, usually after sitting in direct sun/heat all day.

2017 TRD OR DCLB, 142,200 miles.

I've read the 1605 can be anything from fuel pump to ECM - but I assume with my start/idle issues, fuel pump is suspect. No open recalls for VIN. Any ideas or recommendations for troubleshooting? Thanks!
Matt

 

You mentioned no CEL. Were the codes stored or pending?

 

Might be defective camshaft position sensor. Cheap and easy fix

 

P0013 was Status: Confirmed/History, P1605 was Status: confirmed/pending. Tbh I’m a little ignorant to exactly how it reads/stores codes. Again, the P0013 cleared and hasn’t returned, P1605 is recurring. P1605 reads confirmed after rechecking after clearing.

 

run a can of SeaFoam through it - after sitting that long in that heat and humidity you could simply have bad gas. either way the seafoam won't make the situation worse.

 

Not that it solved anything, but for some semi closure: started the truck again this morning, everything normal. Figured if would run codes one more time - all are gone, nothing popped. Even drove 600+ miles today, nothing returned. Here’s to hoping it will stay that way. Still going to run some fuel treatment through it, but the heat of the day does seem to have been a factor on starting.