Help tune lean no matter how much fuel I add to the map

Tuning The Delco In Realtime
Asho88
Posts: 168
Joined: Fri Dec 13, 2024 5:32 am
cars: Vh Commodore 253 looking to convert to fuel injection.

Help tune lean no matter how much fuel I add to the map

Post by Asho88 »

As the title says trying to do a bit of tuning/getting the car running and driving everything seems to be working well no errors as I drive I can see the map reading lean as I open the throttle/rev the car no matter how much fuel I add it seems to do nothing. I was definitely emulating and even tried to upload the changes manually which made no difference. I feel like I’m missing something small but not sure where to start cheers
Asho88
Posts: 168
Joined: Fri Dec 13, 2024 5:32 am
cars: Vh Commodore 253 looking to convert to fuel injection.

Re: Help tune lean no matter how much fuel I add to the map

Post by Asho88 »

Verified fuel pressure is ok when revved increases with vacuum. Thinking about it I’m currently not running a speed sensor could that affect it? If so how can I set it up to bypass it. Cheers
VTXU8
Posts: 149
Joined: Sun Dec 17, 2017 11:12 am

Re: Help tune lean no matter how much fuel I add to the map

Post by VTXU8 »

That's your main issue to start. No speed sensor input. Car thinks it's not moving so it's fuelling from idle table rather than main tables.
Ecu thinks your parked and just revving engine.
Asho88
Posts: 168
Joined: Fri Dec 13, 2024 5:32 am
cars: Vh Commodore 253 looking to convert to fuel injection.

Re: Help tune lean no matter how much fuel I add to the map

Post by Asho88 »

Makes sense haha. I’ve seen that people have run them without a speed sensor obviously need to change some settings. Cheers
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delcowizzid
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Location: Wellington NZ

Re: Help tune lean no matter how much fuel I add to the map

Post by delcowizzid »

Are you adding fuel in the AE settings not just changing the ve table
If Its Got Gas Or Ass Count Me In.if it cant be fixed with a hammer you have an electrical problem
Asho88
Posts: 168
Joined: Fri Dec 13, 2024 5:32 am
cars: Vh Commodore 253 looking to convert to fuel injection.

Re: Help tune lean no matter how much fuel I add to the map

Post by Asho88 »

I was just adding them to the Ve table 🙄 what’s the AE table? Accelerator Enrichment?
VTXU8
Posts: 149
Joined: Sun Dec 17, 2017 11:12 am

Re: Help tune lean no matter how much fuel I add to the map

Post by VTXU8 »

Correct.
brindo
Posts: 333
Joined: Sun Jun 28, 2009 11:43 pm
Location: Western Queensland

Re: Help tune lean no matter how much fuel I add to the map

Post by brindo »

This is 12p? Are you making changes in real time to the VE table?
Just for peace of mind, download the bin you have now, and use the comparison tool and compare your bin to the stock 12p bin. If you have a lot of “undefined” items, I would start again just modifying the tables you need to a fresh 12p tune.
Asho88
Posts: 168
Joined: Fri Dec 13, 2024 5:32 am
cars: Vh Commodore 253 looking to convert to fuel injection.

Re: Help tune lean no matter how much fuel I add to the map

Post by Asho88 »

Yeah 12p. At first I thought that I wasn’t by mistake but gave it another go and even tried manually uploading it from what I can see it’s not using the main VE map possibly using the idle map as I don’t have a speedo signal connected didn’t realise it’d be an issue as a couple of members on here are running without a speedo but I obviously need to change settings to suit I’m not sure where to start.
Asho88
Posts: 168
Joined: Fri Dec 13, 2024 5:32 am
cars: Vh Commodore 253 looking to convert to fuel injection.

Re: Help tune lean no matter how much fuel I add to the map

Post by Asho88 »

Also what are you referring to by undefined? Cheers