help with new delph 42lb
#13
TECH Senior Member
iTrader: (26)
Ok, your VE is way lower in the idle cells then mine, go ahead and raise them up (the whole idle area up) till you get your afr in the ball park. Take the truck out and scan for Auto VE. Don't need to take it for too long of a drive just enough to get a rough idea how how far off your VE table is. Then add about that much to the whole VE table. Once you get back in the ball park with your tune, then you can dial it in with the normal AutoVE process.
The value you have in the IFR table is correct for the GM Multitech injectors.
The value you have in the IFR table is correct for the GM Multitech injectors.
#15
My Injector Flow Rate is set to 5.52344 grams/ second in all cells (B4001).
If you want to richen it up a little you can lower them some. I have seen them recommended as low as 5.15 grams/second. Then you need to tune your VE and MAF tables to suit. Also you can try lowering them a little at lower kpa to see if that helps with idle fueling. Maybe try 5.102 at 0 kpa and 5.141 from 5 to 50 kpa.
First make sure that everything is sound mechanically. If you replace the o-rings use some dawn dish detergent to lubricate them and push them straight in. Do not turn or twist them when inserting the injectors. Just read that recently as it can cut them and oil lubes may deteriorate the rubber and cause them to age more quickly.
If you want to richen it up a little you can lower them some. I have seen them recommended as low as 5.15 grams/second. Then you need to tune your VE and MAF tables to suit. Also you can try lowering them a little at lower kpa to see if that helps with idle fueling. Maybe try 5.102 at 0 kpa and 5.141 from 5 to 50 kpa.
First make sure that everything is sound mechanically. If you replace the o-rings use some dawn dish detergent to lubricate them and push them straight in. Do not turn or twist them when inserting the injectors. Just read that recently as it can cut them and oil lubes may deteriorate the rubber and cause them to age more quickly.
#16
Hello Dave
iTrader: (13)
Ok, your VE is way lower in the idle cells then mine, go ahead and raise them up (the whole idle area up) till you get your afr in the ball park. Take the truck out and scan for Auto VE. Don't need to take it for too long of a drive just enough to get a rough idea how how far off your VE table is. Then add about that much to the whole VE table. Once you get back in the ball park with your tune, then you can dial it in with the normal AutoVE process.
The value you have in the IFR table is correct for the GM Multitech injectors.
The value you have in the IFR table is correct for the GM Multitech injectors.
Aaron, I suspect your wideband is still off a bit. Re-enable trims for a bit and see what they're showing...
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