i put my intercooler and meth on my truck and took it to be tuned.the guy calls me today and told me evertime he puts throttle to floor reduced engine power light comes on.it was doing this before but just ever so often,when it did do it,it was only at idle and it wouldn't crank back up intill i cleared the codes.before i carry it to have it tuned i reprogramed pcm with gm's latest calibrations.hoping that would take care of it.any ideas?maybe throttle body bad?
04 rcsb forged 347
mine kinda has the same problem.
Sounds like possibly a bad MAP sensor or wiring to it. Putting the wrong MAP sensor in it will cause issues, too. Are you running a stock MAP, 2, 2.5 or 3 bar MAP sensor?
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
the guy tuning it changed it to speed density.you think that might have something to do with it?it was doing it before i even put turbo on it.but then it was doing it at idle in drive at redlight and it would shut off and i would have to clear codes before it would crank back up.now its doing it only at wot
04 rcsb forged 347
He may have the wrong MAP file in the tune. You didn't answer which sensor you have. I can't read your mind!
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
lol.sorry i must be blind cuz i didn't see where you ask me last time i looked.im not sure.i think he said 2 bar
04 rcsb forged 347
I wonder if he rescaled the MAP sensor field for the new sensor? I can't pretend to know more than he does but maybe he forgot to change the scaling. Mine did the same thing when I had a tune for a 2 MAP sensor loaded but had the factory MAP sensor installed.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
okay thanks man
04 rcsb forged 347
you throwing any codes?
procharger p1sc, nelson tune, 42# marine injectors, walbro 255, lt's, ory, 4" volant cat back, PerformaBuilt level 2 pro race trans, trans. cooler with e fan, 2500 stall, aem wideband, energy bushings, spohn perf. trailing and panhard rods, mb & gear alloy 22's ( ya 2 sets, im big ballin), ss brake lines, drilled & slotted rotors, bla bla bla bla bla bla bla,
and ya it will beat a hemi.
U mentioned it did it at idle. That tells me it's
Not map or tuned related.
Gm has an issue with bad terminals or wiring.
From each terminal ohm out each wire about 2feet from the throttle body.
Wiggle the wire while u do this
Find which wire has the open.
That's the first thing we'd check here.
Or a bad corroded terminal
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