l2r99gst

iTrader: (2)

Yeah there can be a number of reasons, but adjust the ISCV tables and you should resolve the problem.

Using the BISS to raise the idle may have introduced some of your issues. You most likely should have used the ISCV tables for that as well, but that's fine. As long as your stepper motor has a proper range to work in after the BISS adjustment, then you should be OK. But, that's a whole other story.

For now, just use your ISCV tables like u did for AC on. Also, to be sure that your BISS adjustment didn't mess anything up too much, log your ISC steps at idle, AC off and make sure they are between 2-25.

widge

NO worries i will do that, if there not in that range what should i do?

So instead of increasing idle with BISS i should have just done it with the ISCV tables, oh well we live and learn lol

l2r99gst

iTrader: (2)

We will worry about that later. I don't want to write a novel right now. haha

Edit: Just noticed from your other thread that some of this started from cams and intake install. Depending on what intake, you may need your MAF scaling adjusted. The intake could have been the root of all of your problems. But anyway, just start with what you have now.

widge

The car idles fantastic right now the best its ever done since installing the cams, the weekend for me is in 2 days, im going to work on my hot start first resolve that, then ill log my ISCV when idling and check that its between those ranges, and ill increase the steps in the Desired ISCV Initial Step Position with AC OFF to combat stalling.

Woot i have something to do this weekend

widge

Yeh im going to scale the maf over the weekend i did read that, that can cause stalling issues with cams and intake install, so im going to check my fuel trims and see how far off it is.

Im going to work on my hot start first, then i will check my trims and scale the maf accordingly.

Ill keep you posted

widge

Fixed, AWESOME!!!!!!

Appauldd

iTrader: (22)

Please post your changes.

widge

Ill post my changes when i get home, ill just screen cap the tables,

Cheers

widge

Ok so the changes i made where the following.

To stop the car stalling out when i clutched in i increased the ISCV Initial Step positions in neutral and drive by 10 points.

To solve the cannot start without throttle when warm i decreased the Initial Cranking IPW vs Coolant Temp in the trouble area for me 2.7 worked, this is down from 3.6

Thanks guys

HsamehH

i have the same problem with jdm evo 7 using 98640014 rom,how can i get these IPS vs coolant for my rom ?