Ok I just got this truck and 1 week into having it the check eng. light is on
Can I check codes without a scanner??
And is there any place on the site with a list of what the codes are or do I need to get a manual???
Gas Milage has sucked since I got the truck to on avarge driving with an egg under my foot so to say its like 11.4 in the city! CRAP!
Thanks for the help guys!

https://dodgeforum.com/m_691136/tm.htm

THANKS!

Ok got a P138 (High O2 Volts bank 1 snesor 2)

So how dose a sensor have high Voltage?? Bad 02??

Where to go and what do I do next this sucks!