boost gauge readings
boost gauge readings
So at idle my vac is at -18, which I find normal. But when driving and I let off the pedal it drops to -22 inHG. This is only sometimes. Is this normal because I thought it should be at -20. Vacuum leak maybe?
-18 at idle is good.
it will always drop lower when in the higher RPMS and you close the throttle.
Since vaccum is read in the negative, if you had a leak it would be a higher value (aka closer to 0)
it will always drop lower when in the higher RPMS and you close the throttle.
Since vaccum is read in the negative, if you had a leak it would be a higher value (aka closer to 0)
Ya when u let off the gas it would fall to -20 somewhere, ur engine goes from being in a close to boost state to going into a more vacuum state when u release the gas. It's normal.
LNF have a wideband built in so you would only need the standard. You can get it from ZZP for 499 shipped. That is like the going price everywhere so mays well buy from a cobalt supporter.
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Sl0wbaltSS
2.0L LNF Performance Tech
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Nov 21, 2018 11:11 PM



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