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07 GT Lito tuned FBOs., including HR cams JLT CAI

I have cleaned the TB and the MAf sensor. Runs like a champ. I do the Idle relearn sequence. still runs like a champ. I go for a ride in traffic 30 mins plus long, pull upto traffic lights and I'm surging again.

No codes/CL's.

Should I just replace the MAf? if so which one? Stock?, or should I consider the TPS in this ?

I don't want to hassle Lito over this little thing as I am sure he is super busy.

Any advice with get you good karma thoughts from me , and a virtual hug from my ugly sister.


Disclaimer I have asked this on another forum, so don't flame me to death if you have seen it.
 

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Sounds like one of the sensors has a heat soak related failure. The idle surge suggests it's the TPS, and the intermittent nature of the problem makes it a bigger headache to diagnose. Hopefully it'll trip a code at some point to help you solve it.
In the meantime, try to resist the temptation to throw parts at it 'cause it can very quickly become expensive.
 
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