No, there is no sign of fuel. The engine starts to surge at idle after heating up, you get a rotten egg smell from the exhaust, and the readings on the mass air flow goes up to 15, down to 4.44, and back up again.
cold readings (doesn't surge)
intake air flow 9.99, coolant temp 28 c, intake air temp 10, intake MAP 37, ign timing 8.0, fuel sys open loop, absol. throt pos 3.9%, lt fuel trim 0.8%. Would really appreciate any advice. Thank you.