8
questions

I've replaced spark plugs, coil pack, throttle body, fuel pump, MAF Sensor, Upstream O2 sensor, none of which changed the performance above 2500 rpm. also attempted to reset LHM by removing cables from battery and holding them together for 10 seconds. No change in performance above 2500 rpm. Please help!

My chevy aveo 5 has its check engine light on. I tried checking and tightening the gas cap but the light is still on.

I do an oil change on the vehicle and within 2-3 weeks the oil level has dropped to a point where it causes my car to stall or not excelerate. Like it looses all compression.

at the dealer say is because i
installed an after market alarm do you think it is the reason
of the failure ? . some times it works . when i turn on the ignition it jumps a little thankyou