I'd be inclined to wonder about the EGR valve myself. It's funny that it's not throwing codes tho. If it's stalling like that it should be throwing a code that it's running lean or something like that too... I guess you could check the TPS voltage as someone suggested and see if it's got stable increase/decrease. I can see that it would cause a stall if you opened the throttle and the TPS didn't send the correct info to the PCM to increases the fuel. Then you'd have a lean condition tho... Same as a carb with a plugged jet... You crack the throttle and it stalls because there's too much air and no fuel. On the other side of this you have the MAF sensor. Really... I thought the MAF was mostly responsible for mixture control moreso than the TPS. Anyhow, if it's not the EGR valve then I'd look at the voltage of the TPS. If it was good I'd probably go ahead and change the MAF sensor provided there's no codes suggesting something else. O2 sensors are another thing. Might check the wiring to them but usually they lead to a rich condition and gas guzzling.
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Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
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