Have had my kit installed professionally and tuned and still a little iffy so have been looking into possible things done wrong... Need advice.

On the charge pipe right by the MAF there is another threaded nipple, what is that for ... Also wondering abour o2 sensor locations .

If anyone has pics of where 'both' the o2's are that would be great also a direct over top of engine shot to get a view of the plug by the MAF and to see how other vacuum lines and such have been routed from Utec etc....

Found a couple help full pics of o2's in my search but could us more especially of under hood


Thanks in advance!

 

nipple is for aftermarket AIT sensor for like a haltech. rear o2 are in the down pipe, there are 3 holes one extra for wideband. Front o2, one is in downpipe and one is in exhaust manifold(passenger side) i use throttle body vacuum for BOV, and plenum to run accessories i.e. boost gauge/ meth/ fuel regulator, i use the one on right side of intercooler for boost controller. got rid of the pcv system on intake (horrible) and put on a pan evac system, no more blown valve cover gaskets GL on the utec, it lasted 4 weeks before my MAF went bye bye, thank god for velocity tuning