Stumbling on boost

[Joepiper151]

I'm now running into another issue after my turbo swap and. The car seems to stumble over its self randomly at idle. It also as if boost comes in and out when i roll on the throttle. I've also done new plugs along with the turbo swap. Its almost as if they're fouled up

Is this something that could be related to the JB4?

I did throw a code for the catalytic converter ( im cat less)

I will try data log tomorrow

[Joepiper151]

I've been thinking about this over night and it hit me that we just threw the o2 sensors back in. They may not be in the correct pipe since I forgot to label them. I'm catless on jb4, is this something that could relate to the sputtering problem?

[Joepiper151]

Just filling everyone in in case they run into the same issue. The Primary o2 sensors were switched up causing it to run terrible

[fastdrivingjr]

did you correctly gap spark plugs

[Joepiper151]

Originally Posted by fastdrivingjr

did you correctly gap spark plugs

I'm running the stock bosch plugs. I was pretty sure they come pre gapped to spec.

[fastdrivingjr]

just for a heads up if you run e85 i would suggest the NGK plugs.. and did you get the bmw branded bosch or just the bosch.. i once ran bosch plugs that are made for our cars that i bought from autozone.. they were bosch but not the bmw version and they went bad quick.. they didnt look to bad after removing, but i upgraded to NGK plugs things ran better, then after i gapped my plugs supa smooth

[Joepiper151]

Originally Posted by fastdrivingjr

just for a heads up if you run e85 i would suggest the NGK plugs.. and did you get the bmw branded bosch or just the bosch.. i once ran bosch plugs that are made for our cars that i bought from autozone.. they were bosch but not the bmw version and they went bad quick.. they didnt look to bad after removing, but i upgraded to NGK plugs things ran better, then after i gapped my plugs supa smooth

Ok thanks for the heads up. I got the bmw branded botch plugs so I'll be alright for a while hopefully. I would like to try some e85 but it's not available in my city. I've got to drive a hour to get it.
Will the botch plugs just get burnt up fast using e85?

[mike@x-ph.com]

Originally Posted by Joepiper151

Just filling everyone in in case they run into the same issue. The Primary o2 sensors were switched up causing it to run terrible

This is a very common issue when guys install catless DP