e40 PCM not Logging boost

I have a 2005 GTO with Twin turbos running 6psi, my scanner will not read above 105 kpa.

I have tried to delete all the PIDs and add a 2 bar channel but it never pops up with the option.

Any ideas of what i could be doing wrong?


Thanks

Do you have a 2 bar MAP sensor?

Are the e40's like the ls1 ecms, and have to log with 2 bar config?

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Originally Posted by 5FDP

Do you have a 2 bar MAP sensor?

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Yes, I am running the Cobalt ss 2.5 bar MAP sensor

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Originally Posted by mbray01

Are the e40's like the ls1 ecms, and have to log with 2 bar config?

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Mine came with my LS2 GTO, from what I have read they are sort of a mix of the Gen 3 and 4 PCMs.

Part of the problem is i cant get the 2 bar config to pop up in my channels to log it

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Originally Posted by flothepro

I have a 2005 GTO with Twin turbos running 6psi, my scanner will not read above 105 kpa.

I have tried to delete all the PIDs and add a 2 bar channel but it never pops up with the option.

Any ideas of what i could be doing wrong?


Thanks

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Are you running a 2 bar OS?

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Originally Posted by jaydubb71

Are you running a 2 bar OS?

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Yes, i followed up with all the correct steps, even tried re-writing entire. The OS code (1250150) even pops up in the scanner recognizing that the 2 Bar OS is in the PCM

Post tune and log.

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Originally Posted by mbray01

Are the e40's like the ls1 ecms, and have to log with 2 bar config?

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No they are not, they were the first of the 4th gen ecm's and use the oem map pid similar to E38 ecm's. Most likely he is not running a 2 bar or 2.5 bar sensor(this is the most common reason at least).

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Originally Posted by Bill@HPTuners

No they are not, they were the first of the 4th gen ecm's and use the oem map pid similar to E38 ecm's. Most likely he is not running a 2 bar or 2.5 bar sensor(this is the most common reason at least).

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I am running a 2.5 bar from the cobalt ss i believe. GM code 12615136

So first off, its not a 2.5, its a 2 bar, so if your settings reflect a 2.5, that part of the issue. Now secondly, where did the sensor come from? Did you buy it from a gm dealer, or from some place like rock auto, which is notorious for selling counterfeit chinese knock offs.

Just a minor quibble... Rock Auto does not sell fake parts in AC Delco/Delphi packaging at AC Delco/Delphi prices. But if someone is stupid enough to think that a $8 'ULTRA-POWER' sensor is equivalent to a $50 AC Delco sensor, Rock Auto will let the stupid person buy the fake Chinese $8 sensor if that's what they really want.