Plug and Play?

[BB-Q]

Question, probably a stupid one....

I've worked through things and reckon that my management system (ignition and fuel) is probably the biggest single factor in providing me with detonation @ 12psi on a stock B200FT.

Here's the problem- my 940, whilst not used every day, is effectively my daily driver. Is there a way of using MS so that it's quickly transferrable with the OE system? Also, are maps readily available that will allow a basic running setup before tuning so that, once the system is installed correctly, it willallow the engine to run satisfactorily?

Sorry about the newbie questions, but I'm still trying to decide if MS is the way to go right now.

BTW, got an A/C car with the better I/C (mid mount) already, and I'm told my injectors are good for a theoretical 240bhp, which leads me back to the management system. If memory serves me correctly I think octane ratings for standard fuel have lowered since my '93 car was built.

[dust]

mmmm, i'm just a guessing here, but if you make a connector or connectors that fit to the ones in the stock unit and transfer all the info over to it you should be able to do it "reasonable" easy.

from what i see here on the board, what makes you think that with msm will not work as a daily driver - seems quite reliable to me from all the recent posts.

[BB-Q]

I'm not denying it's reliability at all- the proof's there for all to see.

The problem is my free time, or lack of it. I may get a few hours once a month to fiddle, so if I don't manage to finish something in that time slot the car's stuck on the driveway and we have to take the tram or the bus. Either way Mrs BB and mini-BB will not be happy. In the interests of family harmony and the intactness of my testicles I tend to keep things simple in that respect, or at least well planned (that's why I draw on other's experience before carrying out a modification I may be in doubt about).

Being a mechanic does give me the advantage of being able to get an awful lot done in a short timescale, though.

[dust]

So, are you planning on making a conversion harness from the current to the new and back again till it is done?

i do see a problem with that as the mfg connectors are often rated at duty cycle of 2 and i believe your failure rate would be unacceptable. before i would do what you are planning i would replace all mfg connectors with ones that have at least a duty cycle of 50

[Morley]

I believe there's a guy on here that has made a ms/stock ecu adapter. His sn is volvo740best I think, ask him what he did...

[BB-Q]

That was kind of what I was thinking of. Makes sense really -if you have a problem during set up and need to have it running until you get another opportunity to look at it you can then revert it back to original.

[volvorsport]

i think a chip , might just be enough for you at the moment ?

[BB-Q]

Definitely an easier option, Dave.

But does anyone make one that will work on standard fuel? If so, who? And do I need to do ignition as well as fuel?

Got what felt like fuel shut off today (@12psi-ish) even though everyone tells me 940's don't have it.

[PetesDustyVolvo]

shoot me if i'm wrong but maybe you should get your car working right stock before you megasquirt

thats how i did it anyway? :e-shrug:

well... it wasn't stock when i megasquirted... but whatever... it didnt detonate and as far as I know neither should yours

[BB-Q]

It was perfect when it was stock. It's not stock now- it's getting 12psi of boost.

[PetesDustyVolvo]

what fuel system are you using?

my LH 2.2 didn't mind 19-20 psi H2O and denatured alchohol... with a K camshaft, NPR intercooler and non-stock, albeit similar turbo

i mean... i say, megasquirt it.... go for it.... DO it

[BB-Q]

lh2.4