2004 GTO LS1 flex fuel

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May 13, 2015 | 02:57 PM

Jacktuner

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2004 GTO LS1 flex fuel

Has any body put a 2004 ls1 gto on flex fuel? The p59 pcm has the flex fuel tables in it, so i want to fit a flex fuel sensor if possible,

Does anyone know what the pin numbers are on the PCM where i plug it into? Thank you

May 14, 2015 | 07:01 AM

maroonls1z

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May 14, 2015 | 11:13 AM

Pulse_GTO

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I believe once turned on the car will be able to read the alcohol %, but I'm not sure if it actually modifies the commanded afr or timing tables.

May 14, 2015 | 03:18 PM

Jacktuner

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Theres another flex fuel table to modify spark, there an open loop eq ratio table, there a blend table, i cant see PE table for normal gas but not one for flexfuel

May 14, 2015 | 07:37 PM

topgun542

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If im not mistaken... looking at pcm pinouts, that pcm does not have the flex fuel availability.

May 17, 2015 | 05:34 AM

Jacktuner

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Quote:

Originally Posted by topgun542

If im not mistaken... looking at pcm pinouts, that pcm does not have the flex fuel availability.

Its got the tables loaded into the pcm so i thought i would be possible

May 17, 2015 | 08:58 AM

aknovaman

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From: Hog Back, KS

Even if it has the tables displayed, it is dependent on if flex fuel capability is enabled in the operating system. You can populate all the tables you want but it will never happen if the OS says no.

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