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This is my drive cycle a generic drive cycle i have used many times over the years and it has never failed me most drive cycles are too specific and impossible to adhere to for most drivers follow these steps exactly 1. make sure all codes are cleared and no check engine light is on 2 make sure the fuel level is between 1/4 and 3/4 full (this is part of the enable criteria for the evap monitor to run ) 3 let vehicle set overnight 4 start engine and let idle until the temp gauge is in the middle (this cold start enables the evap monitor and runs the O2 sensor heater test )5 drive vehicle around town avoid the highway stay at below 50 mph and when stoping at lights remove your foot from the gas and coast from around 50 to about 10mph or less if possible this will run the EGR monitor after about 3 to five miles of this proceed to the highway or freeway and travel over 50 but under 70 mph for about 3 to 5 miles this will run the catalyst test provided the O2 monitors passed if they didnt you will have a check engine light on before this point also i do a coast down on exit ramps (no braking) they make great places to get that EGR to run ONCE YOU START THIS PROCEDURE DO NOT KILL THE ENGINE OR SOME OF THE TEST WILL FAIL TO RUN
Code 12--Battery Disconnect---Direct Battery input to PCM disconnected within last 50 ignition key-on cycles.
Normal if battery has been disconnected, otherwise check battery power and
Code 37--Torque converter clutch
solenoid CKT or
Trans temp sensor
too high or low---Open or short in CKT wiring or connectors. Voltage out of range at transmission
temperature sensor input.
Code 55--End of message code. A DTC 55 is used to end all DTC messages.
When is the last time you had a tune-up?
would start by replacing the cap, rotor, plugs and wires. Also, check all hoses for vacuum leaks. I hope this helps.
how much oil is left in the engine ?
the smoke was probaly oil burning,the knocking could be from low oil pressure,this could be very bad.check the oil and coolant levels and repost and let me know how they are.if any oil shows on the dipstick smell it and see if it smells burnt.