Need some help with tuning. EFILive
10-30-2007, 09:36 PM
#22
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Do you mean leave it at 5.2 or put it back stock. I dont have the wideband yet it is on it way to the house still. I have a fuel guage that i connect to the fuel rail to check fuel pressure. I checked it today and it was at 60 at idle with the hose disconneted.
10-30-2007, 09:54 PM
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I think he means you IFR table is good as you have it and does your fuel pressure increase with MAP/boost.
Do you have the vac line connected to the fuel pressure regulator when driving? If not, then the IFR table would be wrong. It would have to be sloped if fuel pressure is not boost referenced.
Do you have the vac line connected to the fuel pressure regulator when driving? If not, then the IFR table would be wrong. It would have to be sloped if fuel pressure is not boost referenced.
Last edited by gao8302; 10-30-2007 at 10:01 PM.
10-30-2007, 10:00 PM
#26
Yes i keep it connected. I just disconnected it to see what the fuel pressure was at idle. I think it is boost referenced. IF it is my fuel pressure will increase with boost like you said right. My boost guage is connected to the vac line on the fuel pressure regulator. If that helps you with anything.
10-30-2007, 10:13 PM
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So i guess my next step install my wideband when it gets here and get my afr correct. Then tune my Ve table and PE tables. I also have to get this cam tuned if you guys have any pointers on that. Thanks alot for all the help tonight
10-30-2007, 10:36 PM
#28
And actually, with you being as lean as you are, I'd think you've got something affecting your fueling. Perhaps a clogged fuel filter or dirty MAF sensor.
10-30-2007, 10:46 PM
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Well, there's not really any PE tuning to do. You set it at your target and adjust your airflow tables to achieve it. Since you're using the MAF sensor, boosted and with the stock MAP sensor and OS, don't spend a lot of time with the VE table. Concentrate on getting that MAF calibration nailed down.
And actually, with you being as lean as you are, I'd think you've got something affecting your fueling. Perhaps a clogged fuel filter or dirty MAF sensor.
And actually, with you being as lean as you are, I'd think you've got something affecting your fueling. Perhaps a clogged fuel filter or dirty MAF sensor.
10-30-2007, 10:49 PM
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When should i do all the other stuff like ve and etc.. Im working on locating an 02 pcm. I would like to take full advantage of everything with the truck and the tune. Im just looking for your thoughts since you have been so helpfull.