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Discussion Starter · #1 ·
Ok, kind of a weird situation and don't know where to look. Car had a base tune in it and would run pretty good under boost,but not driveability. But all of sudden one day I'm driving it a little breaking in the new clutch before going back to the tuner. And suddenly the car starts breaking up and going completely lean even under light acceleration. I brought it back to the tuner he said he thought it was the maf. But I swapped my buddies maf which is also cal'd for blow thru and 60's. And it did nothing????:hammer: I don't know where to look next. Any help would be appreciated!
Thanks!!!
 

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What's your fuel pressure look like?
 

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Discussion Starter · #4 ·
What's your fuel pressure look like?
Fuel pressure is good. I have a decent regulator. And it was set to 38-39 with vaccum off. As far as what was used to tune it goes...that would be a chip and dyno.:confused:
 
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