the_mork
15+ Year Contributor
- 2,619
- 25
- Mar 10, 2008
-
Eau Claire,
Wisconsin
I've always preferred using the throttle switch for map switching but you can't do that if you also want valet mode. It just seems simpler and cleaner to me.
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Yeah that will do it also, glad you guys resolved the issue. Looks like ill be picking up an omnipower 4 bar since i've more than maxed what my gm 3 bar can read running 30+psi. Im also in the middle of building my own map switching harness for dual maps anyone else on here make one of these?
I've always preferred using the throttle switch for map switching but you can't do that if you also want valet mode. It just seems simpler and cleaner to me.
Have you had that problem before? Do you know why the MAF plug needed to be grounded for us to get a good MAP signal? Or am I just crazy? I dont see how that would affect it. Unless the MAP grounds out through the MAF ground?
Sorry Gus that was unclear. The map sensor was reading funny on both SD roms and MAF roms. As soon as the boost gauge hit 0psi the MAP sensor would read 10-11psi. So I switched it to a MAF rom just to see if the car would run. We had no signal from the MAF sensor, so we probed around and found a break in the ground. After it was fixed, we fired the car up and the MAP sensor was reading perfectly.
That didnt make sense to me, unless either it was a coincidence or the stock MDP circuit and the MAFs ground through the same wire or something. And yes, factory MDP circuit for the MAP.
Haven't checked the forum in a while!
As far as the MDP sensor and maf sharing the same ground it is quite possible. however I don't have a wiring diagram in front of me to confirm this at the moment.
I never had problems with the A/C. Did you follow the pinout thing I scanned back in and posted?
Mine also works flawlessly with just the normal pin changes.
Do whatever you like in that regard. I'm using evo8 MAF settings but the car doesn't actually care since you are in effect simulating an MAF it just means your settings elsewhere will be different.
the_mork said:Or, you can make load linear and then build timing and fuel tables from scratch so long as you are aware of approximate airflow and engine conditions.