DeltaLex

my Car is still in limp mode. Cleaned the MAF and the O2 sensors. Also removed the exhaus behind the cat to see if the cat was clogged. reset the brain by disconnecting the Bat for 2 hours. Still car will not rev past 2000 rpm. The car isnīt giving any codes! How do I know if it is a bad ECU. This just started one day on the highway all of sudden the car wouldn't rev past 200orpm. It shuts off if I try to drive it as well if I donīt keep my foot on the gas. PLEAS HELP!!