Hello MS users. I put together a video on how to use the Output Sequencer on 14Point7's Spartan Lambda Controller 2 for maximum accuracy when interfacing to MS. Spartan 2 like most wideband controllers interfaces to MS via an analog 0v to 5v linear output. When interfacing a wideband controller to MS via an analog output, many user run into accuracy problems due to things such as ground offsets, poor grounding, component tolerances on the wideband controller, component tolerances on the MS ECU, etc... This video will show you how to calibrate the analog input using tuner studio to consistently achieve 1/10th of an AFR accuracy between Spartan 2 and MS.
https://www.youtube.com/watch?v=oRMGN2Y ... e=youtu.be
This video is a bit raw, I will do another video based on comments and suggestions.
Regards,
Alan To
Maximum accuracy, MegaSquirt and 14Point7's Spartan 2 WB O2
Forum rules
Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0). For tuning/troubleshooting questions, please attached a datalog and your MSQ file to your post.
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0). For tuning/troubleshooting questions, please attached a datalog and your MSQ file to your post.
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
Re: Maximum accuracy, MegaSquirt and 14Point7's Spartan 2 WB
This is the companion article to the video, http://www.14point7.com/blogs/news/1653 ... megasquirt
This is the excel worksheet used, https://cdn.shopify.com/s/files/1/0189/ ... n.xls?2682
This is the excel worksheet used, https://cdn.shopify.com/s/files/1/0189/ ... n.xls?2682