yes here is the code (p0237). This code will immediately come back on just after clearing. I put a map fooler on so boost, regardless to what amount it gets to, shouldn't affect it. Furthermore, this code was occurring prior to the instalation of the map fooler. In addition to the (po237) code, I also have this other code (1000) that says more driving is required. That code has also been around for a while and hasn't proggressed any further as to the proper diagnoses that it is searching for.