i just installed my gauge tonight, hooked it to the injection pump line with a 3 foot fuel line i did not bleed the air from the line i heard on here it acts like a cushion . i am reading 8 psi idle and 3 when i get on it a little. my question is if the air in the line will still give me a correct reading? i know change the fuel filter and try that but it was getting dark tomorrow i will try the inlet to the filter to see my reading there. any info will be appreciated.