Does it still run when unplugging the maf? Not very scientific but if it stalls it's good,
Proper way is to test it with a multi meter,
Could be one of many things, iacv maf throttle sensor, map sensor split hose etc, I'd start with the cheap options checking for leaks then move onto looking at the rest of it,
Is the fueling correct ? From cold they have an auto choke, maybe when warm it's not getting the right mix ?
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