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Discussion Starter · #1 ·
Lately my GN will chug and die 10-15min into a trip. It runs perfectly on cool starts but once the engine warms up it will chug, backfire a few times and die. Yesterday, it left me stranded, I finally unplugged the MAF and it fired up. I was told it was a coincedence that it started and to look at the crank or cam sensor not the MAF but i'm not so sure. I'm getting no codes when this happens and good fuel pressure at the rail. Its perfect up to a certain engine temp, so its heat induced. Any help appreciated. Hate to start throwing parts at it.

thanks
 

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Someone Crown My Ass!
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7,081 Posts
Sounds like the MAF to me. It will eventually foul your plugs too so you may want to change them. When my original went out on my old car it also didn't code and did the surging/bucking thing you describe.
 
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