95JTalonTSI
20+ Year Contributor
- 32
- 0
- Jan 6, 2003
-
big city,
Florida
well after installing new turbo, On my early 95, i ran midsection of exhaust open because of new o2 housing would not line up , any who the down stream o2 sensor was recieving no exhaust readings for around 2 days since exhaust was ubolted so i dunno if that can affect anything. The problem is later the first night after installation/running open exhaust my car started stuttering a lot at high rpms almost like it was running too rich. Well the next day i changed plugs, clean 2nd o2 sensor since it was soo black and seut filled and bolted up the exhaust back. I leaned the Safc out more to get rid of the stuttering at high rpms is gone now. My deal now is i cannot get rid of the stumbling and hesitation in low rpm range. I tried richeining and leaning out, but nothing still. The car sounds chokey between 2-3k rpm. I dont know what to do. I found i have a check engine code popping up now and then so i went to finally get it checked since i thought it was a cel from the test pipe. Well the check engine code reads Error 0400 EGR Flow Malfunction. What does this mean? do i need a new one, something else? i am lost. At cruising speeds on my car hesitates lightly. My mods are SAFC, 660s, 255lph, no regulator . This is my 3rd day after my new AGP RS49 turbocharger ported and clipped 15 degrees. Please help thanx!

