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McX Apex falling on it's face

bucknaked

Newbie
Joined
Jun 21, 2007
Messages
20
Hey guys I have a 2007 McX Apex that was running great on Friday but on Saturday morning it would sputter and fall on it's face, I was able to ride the rest of the day as long as I turned my boost all the way down(7.5#'s) it felt similar to when I blew off my intercooler but I just ran a leak test today and there are no leaks. Thoughts? Maybe McX box is bad. Saturday morning it wouldn't idle and was throwing a code 14, I pulled the plug out of the McX box and noticed some corrosion, we cleaned it up and it idled and ran fine until it would go over about 8 -10 lbs. Any help would be great, thanks.
 

I just unplugged the secondary injectors and tested the sled and received the exact same results, is there a way to test if this is a problem with the box or a bad connection somewhere else?
 
I am experiencing a similar situation. 7-8000rpm 9-10lbs boost backfiring and falling on its face, changing all my vacuum lines tomorrow night, ensuring all connections are sound, if this fails guess fuel controller is going for a reflash.
 
check harness to McX box, connections get corroded and come loose=doesn't receive proper fueling
 


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