Just a quick note to all ORIGINAL owners of Isuzu SUV's from 2000 to present...
The fuel sending unit started throwing CEL and made my gas gauge go nuts. Well, I called ISUZU HQ in CA. and the guy said it was covered under the 120k mile powertrain warranty. If you're having this very common problem, don't take it to a garage and pay to have it done! Call the closest dealership and take it in for them to do it. If they give you any *****, call 1-800-255-6727 and let them know the dealership not wanting to cover warranty work. Basically the fuel sensor/sending unit is integrated into the fuel pump and you must replace whole thing. Around $400
stayed in my pocket!