AFPR adjustments

[saleen01]

I just installed a new bosch afpr and if i set it to 45 psi line off and then reconnect the vacuum line it shows around 38 psi at idle and normal driving not using boost. I always see on here what pressure should be line off but never really see what it should be when reconnected?

Any help would be greatly appreciated

 

[MSDGN]

That's fine...you'll see about a 6 to 7 PSI drop when the vacuum line is reconnected...

 

[strikeeagle]

Do you have a vacuum/boost gauge? It should drop by the amount of vacuum your motor pulls at idle...

strike

 

[saleen01]

so it loks like it sould be right then. 45 line off should be roughly 38 line on. Jut wanted to be sure. I know my old setup was at 45-6 with line hooked up but that was with a 108 chip and 23 lbs boost. right now i have erics 93 chip and lowered the boost.