Thread: Gen V Swap tune needed

I've never really been able to see a vacuum leak with a gauge.

I doubt you have a leak though. YOu put on a go faster mod and are likely enjoying it. Therefore the uh...6-7 gallons you are burning every 2-3 days doesn't seem like all that much. Back off the throttle and you'll see it improve.

As for the tune. Keep in mind that yoru Gen 3 M90 pushed 90 cuibic inches of air per revolution into your motor and your Gen V M90 is also pushing 90 cubic inches of air into your motor.

The only difference is the Gen V is sending a cooler more dense charge in. There shouldn't be a large fueling difference. the biggest difference is usually in the driving style.

i know there's no vacuum leak, just a coolant leak @ the throttle body gasket. which reminds me...i ported a throttle body also n im guessing thats the problem behind the fuel consumption. im gonna put my original TB back on and see if it makes a difference.

by porting..you messed around with the maf readings. That's probably the issue.

yea thats what i was thinking. i hope i still have my original TB (i tend to keep all my old parts just in case), but i did some cleaning up recently. if not, guess i'll pick another 1 up tomorrow at the yard. thanx for the input