I got this Suburban a little less than a month ago and had a hell of a time getting it to run decent - had a leaky WIF sensor, dead OPS, bad ignition switch, and a bad 5 volt supply in the PCM. :cussing: It's been reliable for a week, but it keeps throwing a code 36. It sets soon after startup when I have to accelerate out onto the main road, the MIL blinks on for a few seconds and then goes out. If I clear it after the engine is warm, I can flog the wee out of the truck without it setting any codes. Is this PMD related, or do I actually have a problem with the fuel solenoid?