log boost with JDM MAP sensor (updated instructions)
Sep 26, 2007, 12:37 PM
#316
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Well, I think Mr. Murphy has taken residence in my car. I put the MAP in, flashed the changed ROM, and the car won't hold idle. I double checked my ROM (05 0011 ROM) and all of my tables match exactly to the tables posted. Has anyone seen a bad MAP yet? I am going to triple check it this morning and install again, but since it didn't work the first time (I was very careful in making sure the maps were right the first time) I am going to guess it won't work again. I tried it with the EGR test enabled and disabled as well to no avail. Don't know what is wrong here... Need some help!
Hmmm, so, Mrfred and I finally figured out what was going on with my MAP, and as it turnes out it was a slip up on my part, nothing was ever wrong with the MAPs/instructions provided by mrfred.
Thanks for all the help!
Sep 27, 2007, 02:53 PM
#319
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Mr. Fred, I got my sensor today, WOOT!!
It's installed and working great, direct boost control is also working, although I will have to spend a bit more time tunning to get it just where i want it.
While I was testing I accidentally spiked 28psi on pump gas, Yikes, amazingly there was no knock though. I got a clue something was wrong when the car started going sideways, hehe.
It's installed and working great, direct boost control is also working, although I will have to spend a bit more time tunning to get it just where i want it.
While I was testing I accidentally spiked 28psi on pump gas, Yikes, amazingly there was no knock though. I got a clue something was wrong when the car started going sideways, hehe.
Sep 27, 2007, 06:55 PM
#320
Well, I think Mr. Murphy has taken residence in my car. I put the MAP in, flashed the changed ROM, and the car won't hold idle. I double checked my ROM (05 0011 ROM) and all of my tables match exactly to the tables posted. Has anyone seen a bad MAP yet? I am going to triple check it this morning and install again, but since it didn't work the first time (I was very careful in making sure the maps were right the first time) I am going to guess it won't work again. I tried it with the EGR test enabled and disabled as well to no avail. Don't know what is wrong here... Need some help!
I had a similar problem, never figured it out exactly, it had nothing to do with map mod, It was something weird in my rom, so i flashed a second modded rom into the computer and it was fine, it was like something changed on its own, but same problem, starting, stalling, then you had to manually keep the revs up. Try another saved version if you have it
Sep 28, 2007, 04:41 PM
#323
Mr. Fred, I got my sensor today, WOOT!!
It's installed and working great, direct boost control is also working, although I will have to spend a bit more time tunning to get it just where i want it.
While I was testing I accidentally spiked 28psi on pump gas, Yikes, amazingly there was no knock though. I got a clue something was wrong when the car started going sideways, hehe.
It's installed and working great, direct boost control is also working, although I will have to spend a bit more time tunning to get it just where i want it.
While I was testing I accidentally spiked 28psi on pump gas, Yikes, amazingly there was no knock though. I got a clue something was wrong when the car started going sideways, hehe.
Keep an eye on the direct boost control thread. I'm in the process of writing up detailed instructions on how to effectively tune the boost control.
Sep 29, 2007, 03:29 PM
#329
Maximum possible (gauge) vacuum is -14.7 psi at sealevel. At your elevation, the maximum possible vacuum is -14.3 psi. During idle, there's no way to get that much vacuum. Even if you let off on the throttle at 7000 rpm, the vacuum won't get lower than -12 psi.
