Replace the fuel cap.
This is such a broad question! What is it doing to make you ask "how to fix?"
Replace Replace
Knock sensor needs to be replace
Take it to a service shop.
Buy a cleaning kit at Auto Zone or equal. If that does not work, you have to take it out to Radio Man. JPt
i had a quote of $3900 for my 2002 rodeo 2.2L
it is low coolant temperature, could be the thermostat could be the sensor for coolant temperature.
How do I fix error code 1712 for Mac?
you drop the fuel tank and replace the sending unit
How can I fix Error code 80040154?
A code 37 on an Isuzu Rodeo means to check the transmission. This could mean that a short is occurring between the Transmission Control Module and the Electronic Computer Unit. Check all wires going from the transmission to the computer. If no short is found, a tube might be placed over the wires to prevent them from accidentally coding for no reason other than magnetic interference.