I believe you can get tunercat for obd2 lt1s for approximatly $400. and I think it does everything that lt1 edit does.

 

Sorry if I seem to be hijacking your post, but this thread has got me thinking. I was previously using the Maf Massager to stave off the dreaded high Maf fault. But after purchasing LT1 Edit I pulled it thinking by disabling the fault code I was ok. But can anyone with rock solid knowledge on the subject tell me if I've made a mistake here. Does the Maf still max out and cause the fuel to be cut in half on OBDII cars even with the fault code disabled?

 

I believe your question is directly related to this thread. I'm curious myself to the answer to that question, but I think we may be looking at an unmarked (unexplored) territory because I've seen this question asked before with no answer.

 

I've read comments by people who claim the injector pulse width is cut by half on an OBD2 system when the MAF threshold is exceeded. I have no physical data to support this. Most of what I have learned on obd2 programming is from L J and Christian M. L J's document helped me. Possibly I can experiment since now I have a wideband o2 to test with.