So I ran the code for the "malfunction indicator light"/"service engine soon" and it spit out code 22. On the website here: http://www.cfm-tech.com/gm_tbi_trouble_codes.htm it says code 22 is for a low-voltage on the TPS. Now what has your experiences been with the throttle position switches on these trucks? On the 944 I had it was a simple replacement. What are your thoughts?