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P0171 16.4 ltft 20 stft

Zero. It had maybe six tanks of 91 through it before the conversation, and I have yet to run a full tank of E85 through it. Not sure if its relevant, but there was very little crud in the tank visible when I changed the pump.
 


That's cool. You might not need to change it since you just did it before the switch. Thanks for all the info dude. And to everyone else too.
And gl OP getting your trims worked out. Hopefully it either self corrects after a tank or two or you get a tune quick.
 
Its not going to self correct it would have done it by now as I have filled the car up twice and put on about 400 miles since then.
 
Cleaned the maf, which was extremely Dirty, no difference. Sprayed around with carb cleaner no vac leaks. Seafoamed my engine and had exhaust coming out of the front clamp on my crossover so turns out that I have an exhaust leak......
So looks like I'm going to need to pick up some ultra copper rtv.

Sent from my Galaxy Far Far Away
 
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i got the same kind on my headers.

this one is a flat bland clamp. the rest of them are the stepped kind. no leaks at all. no copper rtv either, anywhere.

maybe you need to loosen the front header and cross over clamps and wiggle it around some so they seal better?

KIMG0155_zpsjznym3pg.jpg
 
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