i did some tests on the ECM, in the mode to check the O2 sensor the sensor is working ok, the throttle position sensor is working fine and when i checked the air fuel mixture it is running lean, but i know tat my intake hose has crystallized rite after the MAF but i taped it over as the hose is very hard to find in Jamaica so will that cause the misfire and lean mixture. When i was testing the mixture u have to have the rev over 2000rpm it was missing like crazy and alot of blue smoke was coming off the exhaust. so would tat mean its running lean or rich