||04-21-2014 09:48 PM
95 Mustang GT bucking while cruising after EGR fix
Hey all, Im new here and looking for some advice please. Ive lurked here since I got my Stang last week. A little background.....95 Mustang GT, manual trans, completely factory except for a cold air intake. Ive been chasing a few running issues with it since I got it, all minor though. First was a vacuum leak to the EGR that I traced down and fixed due to the EGR code 332. Still "stumbled" a bit at idle, almost like having a hot cam. Never ever tried to stall out though, nor did I ever think it was gonna die so this is just a mild miss. Im not too concerned with that.....
Since I fixed the vacuum leaks to the EGR and plugged it all in Im now having a small issue....Seems to run great, pulls good, very very minor pinging if Im on it WOT, but pulls good. When I get to cruising speed, and it does not matter what gear or rpm, it starts bucking a bit. Feels almost like its struggling or being choked out. Seems like the EGR is opening too much or something. I did verify this by unplugging the vacuum line to the EGR and plugging it with a screw and driving it again. Seemed to pull a bit better, and had absolutely no bucking. Does this mean I have a bad EGR valve? I would think the EGR is good because when I hook up a vacuum tester to it, it holds vacuum and also makes the car wanna die at idle, so that tells me its working. Im new to these cars and just need some advice. Im very tech savy, and do all my own work as well as work for others. Im just at a loss with these OBD 1 cars hahaha. Thanks all!!!!!