![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
#1 |
8 cylinders
Join Date: Apr 2004
Location: Los Angeles
|
![]() I recently wrestled with this and I decided to get the most important information down in one place to make it easier for other people. This will NOT be a hold-your-hand-every-step-of-the-way guide. If you need an article like that you shouldn't be megasquirting an engine in the first place, let alone a 5 cylinder that requires some of the most complicated setup there is. When I say MS in this article I will be referring to Megasquirt-Extra running the latest 029y4 firmware. Also the engine I did this on is a '94 b5234t with S80 T6 ignition coils. I believe the information presented here should be applicable to any 5 cylinder built before '99 (possibly '01 but I'm not sure).
I'm going to assume all throughout this article that the reader is familiar with the setup and operation of megasquirt. If not, I strongly suggest you read the megamanual and the MSExtra manual several times first. RPM signal/triggering and ignition settings: MS MUST be run in second trigger mode using the generic wheel code. The engine has a 60-2 trigger wheel on the crank with a VR sensor and a one tooth cam wheel with a Hall sensor. You want to set up megatune exactly as is listed here: http://www.msextra.com/manuals/MS_Ex....htm#5cylinder EXCEPT, for a few things. Dwell should be set to 3.0ms cranking and 2.7ms running and the last screen with trigger positions and trigger return should look like this: IMPORTANT: I made a mistake with this screenshot. Base teeth should be set to 120, NOT 60 as it says in the picture. Cam wheel setup: This gave me more grief than any other single thing, so read carefully. The wheel decoder takes the second trigger signal as an indicator that the next missing tooth is where to reset the tooth count. The second trigger needs to pass the sensor about 40-50 degrees BEFORE the missing tooth you want to be the start of the count. Take the little trigger wheel disc and grind the indexing tangs off, then turn the wheel so it's about to pass under the sensor when the crank sensor is 8 teeth before the missing tooth, then tighten it down hard. S80 T6 ignition coil information: IMPORTANT UPDATE: Use these coils at your own risk. I chased a resetting problem for weeks that was fixed by replacing the S80 coils with 960 coils. I soldered a +5v pull-up for each ignition output and connected them to 960 powerstages. The information in this section is being kept for posterity and for the part numbers listed. These are internally identical to Bosch Motorsport Single Fire PT coils but with a 4 pin connector instead of a 3 pin. The pin out is as follows: 1 - Trigger 2 - Not Used 3 - Ground 4 - +12v These coils pull to +5v to fire so the spark MUST BE SET TO INVERTED, this is VERY IMPORTANT. If you don't do this you WILL burn up the coils. Unless you pull these of an S80 T6 and get the connectors and wiring included, you will need new connectors. These can be had from Volvo on special order. Getting part numbers was a royal pain in the ass and took me quite a while (thanks to doug for digging these up for me): The plastic connector itself is part number: 9456341 The +12v feed pigtail is part number: 30656689 (you will need 5 of these) The ground and signal pigtails are part number: 30656688 (you will need 10 of these) VR and Hall Sensor information: I used a V3 pcb which has a VR conditioner and an opto isolator on board. Lucky for us they are completely separated from anything else on the pcb so they can both be used at once for dual trigger applications. The VR sensor gets wired up just like normal according to MS instructions and the Hall sensor is wired up according to this diagram: Coolant temp sensor resistance table: Temperature F (C).....................Resistance (ohms) 32 (0) .............................................. 7300 68 (20) ............................................. 2800 176 (80) ............................................. 300 212 (100) ............................................ 150 Use this to configure easytherm. Last edited by Alex Buchka; 12-06-2009 at 10:25 PM.. |
![]() |
![]() |
![]() |
#2 |
Has been
Join Date: Jan 2003
Location: Pasadena, CA
|
![]() And I'll cover MSII-e and 6cyl COP (and sorta PnP 960) in this post woo
|
![]() |
![]() |
![]() |
#3 |
What, me worry?
![]() Join Date: May 2003
Location: Acworth, Ga. USA
|
![]() I guess this question is to POI- how do you get around emissions testing with MS?
__________________
I coulda had a V8! |
![]() |
![]() |
![]() |
#4 |
Board Member
Join Date: Mar 2007
Location: Los Angeles
|
![]() Fixed. Last edited by Karl Buchka; 04-08-2008 at 02:44 PM.. |
![]() |
![]() |
![]() |
#5 | |
PV Abuser
![]() Join Date: May 2004
Location: St. Louis
|
![]() Quote:
A 95+ OBD2 car would have to be able to fake a good OBD2 port readout. I wonder if anyone will ever write that into MS II?
__________________
'63 PV Rat Rod '93 245 16VT Classic #1141 |
|
![]() |
![]() |
![]() |
#6 |
Board Member
Join Date: Jan 2007
Location: Aachen, Germany
|
![]() Buchka boys how are you going to wire up the twin knock sensors on the block? Thought it might be a bit of an issue if only one was wired up and couldn't detect knocking at the opposite end of the engine. The ecu i've got can only handle one :(
|
![]() |
![]() |
![]() |
#7 |
Board Member
Join Date: Mar 2007
Location: Los Angeles
|
![]() You can connect them in parallel.
|
![]() |
![]() |
![]() |
#8 | |
Board Member
Join Date: May 2007
Location: u.k doncaster
|
![]() Quote:
first is this a ms1 or ms2 on a 850 t5 dose anyone have the stock ecu pinout numbers/colours to to ms colours unsure why the trigger is set to 120?some nice person will explain , as i thought they had a 60- 2 teeth missing as i want to order my ms (what ive read i pref the ms2 ) if anyone can possible with firmware and a base msq on the t5 it would be very great as im new to the volvo engine tbh , its mostly the settings that i may have a problem with second point is ive run megasquirt 1 v3 on my r32 hybrid turbo 4wd engine of 25psi with no problems and ive also upgraded to the ms2 , reasons mostly because of the more ram/faster processor , and managed to contect the vvt timing with this as well , |
|
![]() |
![]() |
![]() |
#9 |
Board Member
Join Date: May 2008
Location: Cedar Rapids IA
|
![]() thanks for the help
__________________
2003 BMW 325XI TRADED FOR 1997 VOLVO 850///R ![]() |
![]() |
![]() |
![]() |
#10 |
Newbie
Join Date: Nov 2009
|
![]() so i know this is a old post and im fresh to volvo tuning..
the ms needs to run simutanius fire and has to have both the vr wheel on the crank and the opto on the dizzy becuase we need a 180 or 360 rotation refference correct(becuase its 5 cylinder)? |
![]() |
![]() |
![]() |
#11 | |
Board Member
Join Date: Mar 2007
Location: Los Angeles
|
![]() Quote:
Assuming you mean simultaneous fire? I don't know what that is. Rotation difference between what? Since one complete four stroke cycle comprises two crank shaft rotations we need the cam sync to let the MS know where in the cycle it is. |
|
![]() |
![]() |
![]() |
#12 | |
( ͡° ͜ʖ ͡°)
Join Date: Nov 2008
Location: Rohnert Park, CA
|
![]() Quote:
^this Pre- OBD-II cars can pass if you tuck all the wires and such well and make it look factory. OBD-II cars will take a little more trickery. If not in MS, you could probably program an Arduino or somesuch to output to the OBD-II port and spoof the data (just program the thing for what it needs to say).
__________________
2013 Honda Fit Sport
2018 Subaru Outback |
|
![]() |
![]() |
![]() |
#13 |
Board Member
Join Date: Nov 2008
Location: Denmark
|
![]() Can you use the original coil and the IGN Chip on the coil board on a 4 cyl ?
|
![]() |
![]() |
![]() |
#14 |
Newbie
Join Date: Dec 2010
|
![]() Hi,
I have a noob question,can i use this setup on Audis I5 , especially a 7A engine ?I want to turbocharged it,but i am looking for a ecu,which is not too expensive and MSII have a very good prize. Thanks edit : sorry,now i noticed,that is a Volvo forum. Last edited by Tom_; 12-06-2010 at 01:04 PM.. |
![]() |
![]() |
![]() |
#15 |
Board Member
Join Date: Mar 2007
Location: Los Angeles
|
![]() These trigger settings are for MS1 with a 60-2 crank trigger and a single tooth cam wheel. So if you change trigger wheels and don't use MS2, sure.
|
![]() |
![]() |
![]() |
#16 |
Newbie
Join Date: Dec 2010
|
![]() i want to use a 60-2 trigger wheel.How does it mean that "single tooth cam wheel" ? And if use a 60-2 tw and msII ?Do not works?
|
![]() |
![]() |
![]() |
#17 |
8 cylinders
Join Date: Apr 2004
Location: Los Angeles
|
![]() You can pretty much use whatever trigger wheels you like, but this particular guide is tailored for the combination Karl mentioned. For MSII this thread is of no use to you.
|
![]() |
![]() |
![]() |
#18 |
Exklusiv Zubehör Klub
![]() Join Date: Sep 2002
|
![]() Try here, mostly VEMS guys but some run MS as well:
http://www.s2forum.com/forum/forumdisplay.php?f=61 |
![]() |
![]() |
![]() |
#19 |
Board Member
Join Date: Sep 2006
Location: France (zip: 51330)
|
![]() Is anyone have a general MS wiring for 5 cyl?
|
![]() |
![]() |
![]() |
#20 |
Board Member
Join Date: Mar 2007
Location: Los Angeles
|
![]() It's basically identical to any other MS install.
|
![]() |
![]() |
![]() |
#21 |
Board Member
Join Date: Sep 2006
Location: France (zip: 51330)
|
![]() I had a doubt about wiring 5 injectors.
So i will connect 3 injector to bank #1 and 2 to bank #2 |
![]() |
![]() |
![]() |
#22 |
Board Member
Join Date: Mar 2007
Location: Los Angeles
|
![]() You might as well just wire all five to one channel.
|
![]() |
![]() |
![]() |
#23 |
PV Abuser
![]() Join Date: May 2004
Location: St. Louis
|
![]() Or if you're feeling frisky, use MS2X and run sequential injection. MS3X also makes COP's ridiculously easy.
|
![]() |
![]() |
![]() |
#24 |
Board Member
Join Date: Sep 2006
Location: France (zip: 51330)
|
![]() I am lloking for Megasquirting a '98 S70 2.5T with the original wiring harness (except for the 960 COP),
|
![]() |
![]() |
![]() |
#25 |
They see me trollin'
Join Date: Dec 2008
Location: DM12
|
![]() MS2 only has 4 injector channels.
__________________
'88 245 - 2JZGTE VVTi | MS3X ECU, MS2 TCU | GT3582R-HTA | Staged simultaneous dual fuel | 590whp 580ftlbs 1968 Furd Rustang fastberk | 2JZGTE VVTi | MS3X ECU | PT6776S | 4L80e Microsquirt TCU Sloppy Transbrake | 3.73 8.8" rear end 1981 Piper Cherokee Archer II | Garmin GTN 750 | Ly-Con O-360 |
![]() |
![]() |
![]() |
Thread Tools | |
Display Modes | |
|
|