hesitation

[gomezmk]

I have a 88 supra turbo,5-speed. Lately about every other drive cycle, intermintantly while I'm driving, the car will start to hesitate really bad and the engine will not respond to my gas petal for about three seconds, than it will respond. A check engine light comes on then goes away a few seconds later. I pulled over and did not shut the key off so I wouldn't lose the code and I did a diagnostics and no codes were found. It sounds like it might be a afm or tps. I'm not sure yet I need to do some resistance checks.