When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
99 ls1/ 4l60e in a fairmont. My harness is a psi and I have a 411 PCM. On hptuners vats is set on pwm. Car will start for about 2 seconds and die. Not sure what pwm means but do I need to set it to none?