Not the normal bad idle???

GhostMercury

Member
:
MazdaSpeed 3 08.5
Now my idle doesn't constantly bounce or anything but, for 1 it idles really low. (looks to be 5-400 on the dash tach) But when im coating in neautral it idles just below the 1. Now second when i coast from anygear(pulling it out of gear and into neutral) it drops pretty fast and all the way down to almost dieing then it pops back up. it has never died.

could this be an egr valve issue? or has any one had this happen to them. o and yes i am running a dual setup. each with lines from a vacuum block. NOT all on the manifold line. that goes strait to the wastegate.
 
did you ever in fact replace your WGA?? that sounds exactly like mine before i got the new one in.
 
If you haven't cleaned the EGR try that. My car did the same as described. Now it's all better, well for now anyways. If you have cleaned it then it may just be too late and in need of replacement.
 
GhostMercury said:
my plans are to clean the egr then if that doesn't work replace the wastgate then. hopefully that works


headsup, mine does that now, and IM N/A . so it's most likely not your wga, incase you waste money. It's been happening ever since i put in the pg manifold, and i've heard it from other people. my bet is that's the egr valve , that thing has given me a thousand problems since i got the manifold. also make sure you used thread lock on the bolts to the egr walve..they tend to come loos and disappear when put on new manifold.
 
oh, well you should have said that, lol...now i'd start looking at cleaning the egr valve, and the wga
 
i have the same exact problem going on right now. I'm not sure what to do, my car has almost died battery light came up and everything. what should i do after i try all of that?
 

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