HI, I have a 91 van (its the plymouth version on this particular one), that has 302,000 on the original 3.0, replaced the heads at 175K, but still going.

It hates to start, and loads up when hot... but on a cool day will run like a new van..

I get a code 26 3times, when checking which is high resistance low voltage to each injector bank. I've replaced the injectors, and the injector harness, and the computer with wrecking yard fodder, as well as most of the sensors.Also, cleaned the ground wires. Anyone got any other ideas? Were stumped... it's just had a tune up too.