Hey, ok my car when it is idling when I first start it up will have anywhere from about 8 - 10 in/hg of vacuum. (I guess because I have forged pistons it takes them a minute to heat up and expand...) Well after letting it idle for a little bit it will then go to normal vacuum (19 - 22 in/hg) but today after I drove the car about 20 miles I got off the interstate parked it for a second and then after like 30 seconds the thing dropped the vacuum to 12 in/hg again and ran VERY RICH (ex. 10.2 - 10.4 :1) !!!!???? Does anybody know what this could cause this...??? Please help.

Later,

Sean C.

 

That happened to me when one of my vacuum lines popped off. Just double check all of them secure em with zip ties.

 

Yah, well I wish it was something like that... It turns ot it was the Hondata being so rich it was begining to wash it.... I cought it early and we got it fixed so I didn't spin a bearing or anything, but that really sucked!!!!! I was really close to buying a new crank and bottom end.... . Well anyways. it's always good to have an awesome tuner around willing to help. I said it a thousand times but to Shad and everybody at Accuracy Automotive!

Later,

Sean C.