ii have four engine codes
3, 41, 6 and 17

the car back fires, the check engine light is on, and when u try starting the car it starts funny, it doesnt start on first crank other then that ive been driving it any suggestions?

you think it might be a gasket leak or something cos when i drive i can smell a little bit of smoke and when u downshift u can smelll gas

i'll need jesus help on this one lol

 

What year of car? Swap?


Code 3 is Map Sensor(defective circuit, or unplugged, defective sensor)

Code 6 is ECT Sensor

Code 17 is VSS Vehicle speed Sensor.

Code 41 is Primary Oxygen Sensor - Heater
circuit malfunction

The O2 sensor and the MAP sensor would explain the startup issues. But why wouyld you say a gasket leak? If your cel is on then fix those problems first.

 

would a bad o2 sensor cos u to smell gas when ur motor is running?

 

Both the map sensor and o2 sensor will cause you to run rich

 

I would do the map and the O2 sensor together. If you do one now and then do the other a couple weeks later it might cuse damage to the new part.