Ok this is weird. I filled my tank up today and drove 50 miles. Then I notice my gas in on E. I knew there was no way in hell that was right. Then I started paying attention. It seems that every time I shift both my temp and gas gauges go to zero and my stock boost gauge goes up almost halfway and gets stuck there. It will stay like this the whole time I am in 5th gear only and when I go to neutral. Strange problem huh? Also got some kind of soft warning buzzer when shifting to every gear besides 5th . Any ideas?

 

Hmmm, check fuses first. Is the shift up light working?

You can check the function of the 5th gear switch from the ECU input from said switch, per the FSM pinouts (and all other tranny switches, for that matter). Saves you the trouble of crawling around under the car

 

Loose grounds on the back of the gauge cluster... check all the connecting screws

 

Well I figure if its a fuse it wouldn't go off and on, but maybe I'm wrong. I'll check in the morning.