At first I neglected to disconnect the injectors. The result was that my compression steadily increased as I tested. It was something like 175, 180, 185, 190 and then I went back and did the first few again and got close to 200. My theory is that the gas was building up and resulting in a more "...

Yes, that is what I meant by first bump and 5th bump. As for the throttle, I, perhaps ignorantly, simply floored the accelerator pedal. Are you saying in DBW systems that is insufficient? If so, how would that skew the numbers I got? It seems logical that the TB should be wide open to allow sufficie...

Yesterday I borrowed a compression tester from an auto parts store and checked out my 2005 Vibe with 190,000 miles. I let the car warm to about 150 degrees F, and tested both first bump and fifth bump. First bump supposedly indicates the health of the valvetrain (according to this thread ). All firs...

Ah, I missed the e10 gas, good call. I had "petrol" selected, so I bet that threw things off a bit. I probably won't be getting 40mpg in town anymore, darn it. I also love seeing 255 when I coast in gear, because I know it really means infinite, since there is zero gas and non-zero miles. ...

For those of you running Torque Pro, how accurate have you found the gas mileage to be? Mine seems to be a little optimistic. What kinds of calibration have you done (volumetric efficiency or MPG trim)? I guess I just need to fill up, take a long trip, fill up at the end, and compare the results, un...

Hi I'm also interested, and I am local. It seems I can't send PMs yet (new user restriction?)