Magna86
01-20-2020, 05:56 PM
Alright guys got something going on here. My mileage has dropped significantly. The car is barely squeaking 250miles to a tank avg 21-23mpg. This car was avg over 30mpg and on long road trips close to 50mpg. So something is telling the computer wrong info. Car doesn't seem to have a loss of power. Here's what's been done so far:
Compression all 4 around 180psi
No signs of head gasket leak in the oil or coolant.
Changed some worn hoses and thermostat 180*(thought possibly stuck open)
ECT changed incase was failing but ohm's were correct
Plugs and wires good have about 25k on them
Checked timing and vacuum advance
No disconnected lines or sensors
Sprayed for intake gasket or vacuum leaks none found
No lights or codes
O2 sensors were replaced. Have one Bosch and one denso(got a bad denso from the box) Thought this was original problem since I had 2 code hence the Bosch replacement. Code gone but still bad mpg.
So my next step is to read the O2 voltage and see if them are playing nice.
What are you thoughts. I have an intermittent hot start issue but I'm tying that to main relay which I haven't replaced yet.(I'd like to meet that smart engineer for location logic!)
Thanks
Guys
Compression all 4 around 180psi
No signs of head gasket leak in the oil or coolant.
Changed some worn hoses and thermostat 180*(thought possibly stuck open)
ECT changed incase was failing but ohm's were correct
Plugs and wires good have about 25k on them
Checked timing and vacuum advance
No disconnected lines or sensors
Sprayed for intake gasket or vacuum leaks none found
No lights or codes
O2 sensors were replaced. Have one Bosch and one denso(got a bad denso from the box) Thought this was original problem since I had 2 code hence the Bosch replacement. Code gone but still bad mpg.
So my next step is to read the O2 voltage and see if them are playing nice.
What are you thoughts. I have an intermittent hot start issue but I'm tying that to main relay which I haven't replaced yet.(I'd like to meet that smart engineer for location logic!)
Thanks
Guys