[Gmecm] Fuel Trim

[WopOnTour]

Steve
Interesting responses... Did you get what you were looking for??
The scaling details convert the raw integrator(short term fuel trim)  and 
block learn (long term fuel trim) numbers into +/-1-100%
Try these in Mode $01
HTH

Regards

WopOnTour



PID 06 - Short term fuel trim bank 1 -send string '010606'

Receive 13 bytes

Returns one byte response in location 12-13 of received data

short fuel trim bank1 =

b/128*100-100 %



PID 07 - Long term fuel trim bank 1 -send string '010706'

Receive 13 bytes

Returns one byte response in location 12-13 of received data

long fuel trim bank1 =

b/128*100-100 %



PID 08 - Short term fuel trim bank 2 send string '010806'

Receive 13 bytes

Returns one byte response in location 12-13 of received data

short fuel trim bank2 =

b/128*100-100 %



PID 09 - Long term fuel trim bank 2 -send string '010906'

Receive 13 bytes

Returns one byte response in location 12-13 of received data

long fuel trim bank2 =

b/128*100-100 %







----- Original Message ----- 
From: "Steve Mackie" <smackie at apicalconveyorsystems.com>
To: "GMECM" <gmecm at diy-efi.org>
Sent: Wednesday, May 25, 2005 8:08 AM
Subject: [Gmecm] Fuel Trim


> How do I get the data related to the fuel trim? I can read the data stream 
> from the vehicle, Mode 1 Message 0, but there is no apparent "Fuel Trim" 
> word.
>
> 1995 Monte Z34, 3.4L DOHC, 16196401, BKLL
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