DFCO not working

Holden/Delco Tuning. ALDL, OBD 1.5. Circa 1989 to 2004.
DeathSammich
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Joined: Mon Feb 05, 2018 8:18 pm
cars: VT Commodore

Re: DFCO not working

Post by DeathSammich »

Biggvl wrote:How about posting the log then?
Good idea.
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DeathSammich
Posts: 18
Joined: Mon Feb 05, 2018 8:18 pm
cars: VT Commodore

Re: DFCO not working

Post by DeathSammich »

Biggvl wrote:How about posting the log then?
I posted the log. Was just wondering if you can get decel enleanment on a VT aswell? Cruising without throttle at 80km uses about 2.6L per 100. LGBT throttle isnt bad using about 6-8l per 100. This is on the instant fuel usage
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VL400
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Re: DFCO not working

Post by VL400 »

1min in to your log DFCO is working. At 2min40 TPS is not at 0% so wont be in DFCO.
DeathSammich
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Joined: Mon Feb 05, 2018 8:18 pm
cars: VT Commodore

Re: DFCO not working

Post by DeathSammich »

VL400 wrote:1min in to your log DFCO is working. At 2min40 TPS is not at 0% so wont be in DFCO.
When completely off throttle my wideband sits in the 14s with instant fuel using 2.6l an hor. On stock tune the revs go to 1k and says 0.0l per hour
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VL400
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Re: DFCO not working

Post by VL400 »

At 1min DFCO works and at at 2min40 the TPS not being 0 prevents it. Could be a setting, a mechanical thing or your foot ever so slightly on the pedal.

This is at 1min and shows DFCO working....
DFCO.png
DeathSammich
Posts: 18
Joined: Mon Feb 05, 2018 8:18 pm
cars: VT Commodore

Re: DFCO not working

Post by DeathSammich »

VL400 wrote:At 1min DFCO works and at at 2min40 the TPS not being 0 prevents it. Could be a setting, a mechanical thing or your foot ever so slightly on the pedal.

This is at 1min and shows DFCO working....
DFCO.png
Weird. With the stock memcal my fuel usage goes to extremel lean and my instant fuel says 0. On the nvram my wideband stays in the 14s and instant fuel says 2.6l. Not sure what's goig on.

Btw from that log does my car seem underpowered or normal for a relatively stock l67?
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