Hello guys and thanks in advance, im new to this forum and seeking help. I have a 1998 silverado 4.3. Whenever i cold start the truck and accelerate slowly at about 1.5 RPM it begins to bog down. If i accelerate aggressively no issues. Once i let it warm up for about 30 mins no issue accelerates fine slow or aggressively. I also noticed that when i disconnect the throttle position sensor the issue goes away. I already replaced the throttle position sensor and i have the same issue. I replaced the MAP sensor too. I have disconnected the MAF (mass air flow sensor) and i still have the issue. The only sensor that makes a difference is the throttle position sensor which again is new from auto zone.