HELP HELP MAP sensor problem
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HELP HELP MAP sensor problem I have an 02 LQ4 6.0L with a maggie 112 on it. I had a tune in the truck and it was running fine (this tune would kick on the check enegin light for maf voltage low). I had the truck running doing a quick log with my HP Tuners. I shut the truck off and downloaded a new tune in the truck fired it up and now runs like crap. My kpa's are reading 180-190, my mech boost gauge is reading 0. So i put the old tune back in it(the one that it ran good on) and now that tune also runs like crap. I reaplaced the MAP sensor twice now and still dosent run good. If i unplug the MAP while the truck is running it will smooth out and run good. Can anyone help me?
Last edited by 68 c10 ls2; Sep 19, 2010 at 10:59 PM.
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I havent tried that yet, so i will do that tonight. I have a 2 bar map sensor in the setup.
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I just hooked up HP Tuners and ran a log with key on engine off and the map reads 0. I then started and ran the truck for about 30sec, then went and checked to see how how the headers were and 5,6,7,8 were hot and 1,2,3,4 were cold/warm. I then pulled a spark plug on #1,#2 and they were wet with fuel. so i dont know what the f*** is going on.
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9-20-10.hpl
log 3.hplThe 1st log was from yesterday 9-20-10 and the 2nd log was from right before i started having all my problems.
log 3.hplThe 1st log was from yesterday 9-20-10 and the 2nd log was from right before i started having all my problems.
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Im running the painless 99-02 6.0L wiring harness and i checked all the fuses and relays and non of them were bad and checked all the factory fuse box too. By 1,2,3,4 its the accual cylinder number. So 1,3 on the drivers side and 2,4 on the passanger side.
