Start off saying that I have a 91 integra, intake( short ram), dc headers, chipped with BRE and GSR cams. I noticed tonight on the way into work that the gauge was floating back and forth as if it was closed loop. But what really disturbed me was the fact that it would flat line when I full throttled it. What could be the cause.

Ive had this setup for a few months now. Now it was raining all day yesterday and the ground was wet tonight into work?????

what do you guys think.

 

I went out to lunch and everything was ok. hmmmm we may never know.

 

could have been moisture affecting the resistance. reducing it.