Diagnosing P0300 code & Camshaft Retard Offset Adjustment Using Torque App


Full Access Member
Feb 15, 2016
Reaction score
@Mista Jey would be your best chance of getting help to make a post on the topic yourself so your question is more directed. torque pro is a nice app but i dont recommend using it as your only source of diagnostics. it is highly inaccurate on alot of things but its handy as code reader and keeping an eye things looking for big spikes and dips. using a scanner designed to actually check the timing properly and having the rpms correct for 0 degrees timing. at that point then yes your timing is +/- 2 degrees. also this post was originally based in reference to the 5.7 not the big engine. there is a chance to have the timing a smidge farther and MAYBE not flagging the p1345 under most circumstances. it also possible to havr p1345 and have the truck still run flawlessly.


TYF Newbie
Sep 13, 2021
Reaction score
This post may help you if you have the dreaded P0300 code on our Vortec engines.

First you need the info to add the PID in the Torque App here are screenshots of the info you need to enter:

You must be logged in to see this image or video!

You must be logged in to see this image or video!

The part you don't see at the bottom is the OK button to save the PID. Once you save it by hitting OK, go to the main screen and select Realtime Info and swipe left or right til you find room to add 2 gauges. Hold your finger over the screen til you see Item Options menu and select Add Display. Next select Digital Display and scroll through the sensor options til you find and select Cam Retard Offset. Now move that display to the top or bottom so the rpm display you add will fit on the same screen. Same instructions apply for rpm except you select Engine RPM. When you're done it should look like this:

You must be logged in to see this image or video!

As long as you entered the info correctly setting up the PID your data should make sense. At 1000rpm my retard offset read 1.0 and I noticed when coasting at highway speed the CMP Retard data flatlined and the CEL flashed at the same time. Time to check out my distributor!

Hope this helps


Sent from my SM-G935V using Tapatalk
I tried adding the PID, but for some reason it will not allow me to put a negitive number on the minimum scale.

Forum statistics

Latest member