Information on tuning, troubleshooting and tune-related questions.
It is common for folks to make the mistake of crossing oxygen sensors when reinstalling during a build. We notice this a lot while reviewing datalogs our customers send in from remote tuning – in the datalog it becomes obvious to us that the oxygen sensors are not plugged in correctly. If we note this
Check out our handy chart below for identifying GM MAP Sensors (listed here), along with linear/offset data. If you need assistance deciding on which one to use, shoot us an email at email@example.com! Click on the chart to enlarge.
For common remote tuning questions, click HERE. Otherwise, check out our video and graphic below on setting up and obtaining a datalog during our remote tuning process. Are you scanning a gen III car with a 2/3 bar MAP Sensor? Please view our set up video below.
How does remote (email) tuning work? We offer remote tuning with HP Tuners. All files/datalogs are submitted via email, and uploaded/recorded by the end user. This is basically mail order tuning except you have the ability to send us datalogs so that we can fine tune your set up. This is an excellent route for
Our fan patches and fan information for our electric fan kits are hosted here. Choose the corresponding folder, right click and save the appropriate file. Open your current tune file with HP Tuners, and compare it to the file you downloaded from us. Copy ALL of the fan settings (done easily with the ‘compare ->
Displacement on Demand/Active Fuel Management (DOD/AFM) and Variable Valve Timing (VVT) DOD (also referred to as AFM) and VVT became options starting with Gen 4 LS motors (5.3L, 6.0L, and 6.2L). DOD/AFM disables four cylinders (1,4,6 and 7) at cruise. VVT is Variable Valve Timing. Some motors had both, some had one or the other,
Piston to Valve Clearance Calculator Click HERE – and then download “Piston to Valve Clearance Calculator.xls” Whenever installing a new camshaft, a set of heads, or a fresh build entirely, it is critical to check piston to valve clearance. At top dead center, at the end of the exhaust stroke and beginning of the
Idle Setup (93 & Older) No aftermarket throttle body should be expected to work out of the box. Also, if you have a large cam and/or more displacement you should pay close attention. All GM vehicles in our focus use what is called a IAC motor. This motor controls a air bypass in the throttle
Electric Fan Patches Purchasing one of our LS1, C6, or SPAL electric fan kits? You will need to have your PCM patched in order to operate them. The patch can be done by anyone with HPtuners tuning software. Start by visiting our fan patch link here to download the appropriate file. Compare your file to