Is it too cold?

[traxxasman]

I live in central wisconsin and its freakin cold. I've been getting fuel cut/boost cut, or whatever you want to call it, at about 5000 rpms pretty consistantly and full boost (obviously). I get the overboost/wastegate malfunction engine code most of the time but not always. I have a 05 MR with ams 3" tbe, cobb intake and a bov from a IX MR, the metal one. Im using the Stage2 93 v101 map w/ 93 octane gas with 10% ethanol (A-holes). I got new boost lines from cobb.

I'm wondering if the cold air is causing my problems or the gas or a combination. Would it help if i used the Stage2 91 v101 map and the same gas. or is there something else going on.
Another thing is when the car is under a little boost and i let off the gas a little the bov valve flutters for a couple secs and the car jerks slightly. Is this normal? This happens in the summer too.

[CDO]

It could well be from the cold. There's a thread on this here:
fuel cut issue???

I live in Wisconsin too. My first Evo had a Dynoflash tune. My current one has the Cobb AP. Neither one has ever had this problem. I feel for you.

[MRevolutionIX]

i was just at cobb getting the wrx tuned and while i was there i grabbed the new vacuum lines. the guy that gave it to me (chris i think) marked the smallest hose coming off the "T" with a paint marker and told me i must make sure that when i install it the marking is facing up. he also told me that if i have any problems with boost (not enough or too much) to give them a call and they will suggest trying different sized restrictor pills depending on what it is doing. i say give them a call and let them know whats going on. they should be able to help you out. good luck.

[jebjkey]

download the access tuner software (free) and lower your WGDC or raise your fuel cut.

[jebjkey]

try this link http://accessecu.com/register/cobb.php for the access tuner software.

[Turbodemon]

i blame the o2 housings

i had no problems untill i installed that ****.