Again, thanks for the responses. I should have mentioned earlier that Chrysler v8 injection from 1992-2004 uses a cam sensor located in the distributor to determine compression stroke as explained earlier by another member. Additionally, the crank sensor is tied to the flywheel location. What...
Thanks so much for all the responses. I am getting the impression that my original thought that fuel sync is actually tied to piston position rather than specific valve opening is possibly correct. That makes more sense to me but I'd really like a confirmation. I am embarrassed to say that I...
I see your point about a software change for each camshaft, that is a good point. The only other problem is when a significantly larger duration camshaft is installed. When I've searched other peoples builds, and a dyno pcm tune is done, the fuel sync stays in the factory range, typically +4...
I am looking for someone who "UNDERSTANDS" the fuel sync concept in Chrysler efi. Why? I am calling BS on virtually everything I read on the net about how the fuel sync "precisely" establishes when the injectors fire in relationship to intake valve opening. If that was so, the factory spec of...
