MSefi.com read only forum (Jan.15,2018)

MSII + TPI adaptor board, code 2.89 B&G code, sbc 383 fuel injected, all contorled by MS.
Ok, i got finaly all of my wiring and stuff right and can finally start proper tune, car idles quite good - no bogging etc. quite lean now but im working on that, problem is that my PW goes below 2.0ms i=on idle especially, and from what i read in megamanual it is bad.
Please someone review my config and check what is the problem, log shows idle, cruise and WOT.

link to log (3.05MB): https://rapidshare.com/files/2068992522 ... .43.05.msl

best regards

Does it actually drive well when the PW is that low? If so, I wouldn't worry about it - let the way the engine runs be your guide, not some theoretical number.

ok, but is PW below 2ms on idle ok too ?? do you see any thing rong in config or log excluding being a bit to lean ??

best regards

If it runs like that, that is the right setting. MS1 has some trouble idling on small pulse widths, MS2 doesn't.

ok Matt, thanks a milion for quick help

best regards

WASyL wrote:MSII + TPI adaptor board, code 2.89 B&G code, sbc 383 fuel injected, all contorled by MS.
Ok, i got finaly all of my wiring and stuff right and can finally start proper tune, car idles quite good - no bogging etc. quite lean now but im working on that, problem is that my PW goes below 2.0ms i=on idle especially, and from what i read in megamanual it is bad.
Please someone review my config and check what is the problem, log shows idle, cruise and WOT.

link to log (3.05MB): https://rapidshare.com/files/2068992522 ... .43.05.msl

best regards

WASyL, how are the Idle of your car? I have seen the datalog, and it looks ok although the pw keeps below of 2.0 ms. AFR looks OK too.

now it is quite ok, after changing my CAI PW went a bit over 2.0ms and idles good

best regards

WASyL wrote:now it is quite ok, after changing my CAI PW went a bit over 2.0ms and idles good

best regards

Iam having troubles with Idle of my car too. It is a 4 cylinders engine 1.8 L.
Are you using alternating or sequential fire?
How many squirts per cycle?

4 squirts, simultaneous - but will be working with that

best regards

4 squirts, simultaneous - but will be working with that

I typically avoid that on V8's.

With that setup, your fueling has to factor in so many injector open times, and leave you with compounded error.

2 squirts alternating and you will have far larger pulse widths to work with, especially at idle. Also you will waste far less time opening your injectors and significantly lower your duty cycle. You can get a lot more HP out of the same injectors by minimizing the number of opens per burn.

thanks a milion man, i managed to make my car already very strong with this setup but if this will make few more ponies then ill go that way! every day i learn something new and this is what i love about MS

best regards

It will not only allow more power on top, but will also offer a cleaner idle and crisper part-throttle response.

that is what im lookin for from very beginning

best regards