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Discussion Starter #1
Finally solved the issue of popping out the intake when cold on my 89 5.7 TPI engine. Turned out to be a bad mass air flow sensor. The readings looked close at idle and cruse, but were off over 50 grams at full throttle. After changing so many other parts and getting a lot of bad advice, I finally got a data logger and found the problem. Hope this helps someone save some time and money.
 
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