Search found 76 matches

by sammy
Wed Jan 16, 2013 7:18 pm
Forum: Tuning Fuel and Air
Topic: Synchronous Map Sensor sampling
Replies: 1
Views: 379

Synchronous Map Sensor sampling

the Megasquirt Product Comparison site indicates that MSII allows Synchronous Sensor sampling.

http://www.ms3efi.com/feature-xref.html

So from my undersanding MSII should allow you to synchonise the MAP sampling at a particular crank angle
I'm using Tuner Studio and MSII v8.89 and I have EDIS 4 ...
by sammy
Wed Jan 16, 2013 4:24 am
Forum: Injectors, Fuel & Air Supply
Topic: anyone know about SyncroMap?
Replies: 7
Views: 963

anyone know about SyncroMap?

I've stubled on this site =_ http://www.synchromap.com/ .

It talks about Bruce's SyncroMap, does anyone know about it?

is it available?

it could be a good alternative to Alpha-N for those of us struggling with SD on ITB
by sammy
Tue Jan 08, 2013 7:01 am
Forum: Tuning Fuel and Air
Topic: IAC "calibration/configuration" settings
Replies: 6
Views: 977

Re: IAC "calibration/configuration" settings

I had exactly the same issues a while back when I tried to get my IAC working; I eventually worked it out in a similar way.

1) I connected the IAC up to the MS but not installed on the car. (In my case the IAC and the IAC Body are separate from the engine)[/ size]2)
2) I set the Cranking Position ...
by sammy
Sat Jan 05, 2013 6:59 am
Forum: Tuning Fuel and Air
Topic: Still having trouble tuning - the never ending battle
Replies: 4
Views: 1028

Re: Still having trouble tuning - the never ending battle

Sorry for the delay in responding, I've been flat out over the Christmas break rebuilding one of my other cars and with the added Christmas and New Year festivities I haven’t had a chance to post a reply.

Andy’s Tuning Website hasn’t been far from my mind since I first looked at it a couple of ...
by sammy
Tue Dec 11, 2012 2:43 am
Forum: Tuning Fuel and Air
Topic: Still having trouble tuning - the never ending battle
Replies: 4
Views: 1028

Re: Still having trouble tuning - the never ending battle

Matt ,

I ‘m sorry but I still cant get my head around it.
The Pure AN to Blend & SD thresholds are both based on RPM.

The car idles between 68 and 70 kPa at 750rpm.

If I blip the throttle at idle the map will immediately shoot up to 100Kpa while the RPM bearly moves past 700 to 800 rpm for a ...
by sammy
Sun Dec 09, 2012 10:44 pm
Forum: Tuning Fuel and Air
Topic: Running very lean during engine braking, exhaust popping
Replies: 5
Views: 964

Re: Running very lean during engine braking, exhaust popping

Hi Grover,
I'm following the same path as you - ITB - except on an Alfa Romeo.
my Version of code is 2.86.

I Havnt got to Blended AN yet, and I'm finding similar problems as you with the straight SD.
Poping from the exhuast etc
I'm also getting some flat spots and its going rich r lean when I ...
by sammy
Sun Dec 09, 2012 6:43 pm
Forum: Tuning Fuel and Air
Topic: Still having trouble tuning - the never ending battle
Replies: 4
Views: 1028

Still having trouble tuning - the never ending battle

Hi everyone
I hope someone can help with this and I apologise in advance if my questions are a little lame.
I’m still having problems with tuning.
I’m going to try Alpha-n only to see if that helps but in the meanwhile, I’d like to exhaust all avenues with Speed Density and Blended Alpha-N – which ...
by sammy
Thu Nov 29, 2012 6:08 am
Forum: Tuning Fuel and Air
Topic: poor idle and high revs
Replies: 20
Views: 2016

Re: poor idle and high revs

Hi everyone,

seem to have resolved the last problem i was having,

As I mentioned earlier, I’m using Suzuki ITB and I read somewhere to use the Suzuki Vacuum damper that comes with the TBs – to smooth out the signal.

I don’t know what is in this little device, but it somehow caused the map ...
by sammy
Tue Nov 27, 2012 3:10 am
Forum: Tuning Fuel and Air
Topic: poor idle and high revs
Replies: 20
Views: 2016

Re: poor idle and high revs

Hi Matt

thanks for your help

I uploaded the MSQ file.

When I enter all the relevant parameter and generate the VE table the bins are way too high at idle (~30) so I found by dropping them to around ~20 the car will idle ok.
I set the Acceleration Enrichment off by setting the upper and lower RPM ...
by sammy
Thu Nov 22, 2012 4:23 am
Forum: Tuning Fuel and Air
Topic: poor idle and high revs
Replies: 20
Views: 2016

Lean condition when bliping the Throttle

Hi everyone,

I'm running 4 Independant Throttle bodies, MSII and 2.86 of the code.

I have 3 questions I'm hoping someone can help me with.

1) with Acc Enrichment : the Tuning Manaul suggests starting the TPSdot threshold at 1.0 and to try to keep it below 2.0, while the tunerstudio mentions the ...
by sammy
Thu Nov 22, 2012 4:00 am
Forum: Tuning Fuel and Air
Topic: poor idle and high revs
Replies: 20
Views: 2016

Re: poor idle and high revs

hi everyone, sorry for to the late update.

the problem i was having wascaused by a numebr of things ...

1) my spark plugs were only 6 months old so the last thig I check were the pklugs. well.... one was stuffed !
2) Overly rich mixture. I think the mixture was so rich that it wasnt burning all ...
by sammy
Thu Nov 22, 2012 3:48 am
Forum: Tuning Fuel and Air
Topic: How much should AFR fluctuate at idle?
Replies: 3
Views: 807

Re: How much should AFR fluctuate at idle?

hi kccampro
mine does too, jumps anywhere between 13.5 and 14.3
I'll be interested in hearing if you find a soliution for it

Sam

Btw, i'm also thinking of Blended Alpha-n. I have MSII 2,8 and I've heard its much simpler with MS3.
I've read a bit about MSII and blending but i must be dumb cause ...
by sammy
Fri Sep 21, 2012 7:56 am
Forum: Tuning Fuel and Air
Topic: poor idle and high revs
Replies: 20
Views: 2016

Re: poor idle and high revs

At this stage I'm thinking anything is possible (although I can’t detect an exhaust leak anywhere).

As far as it running better with lower VE values – I think I was just kidding myself … Yes its better, but still worse than what I had with the carbies.

I may not be describing the problem properly ...
by sammy
Thu Sep 20, 2012 6:41 am
Forum: Tuning Fuel and Air
Topic: poor idle and high revs
Replies: 20
Views: 2016

Re: poor idle and high revs

Yes folks that makes sense ... but.....

Everywhere I look I see warnings and disclaimers about running lean and melting pistons,
so I’m a little nervous about it.

Also the WB was installed in the car for almost a year while It still ran on Carburettors and it seemed to be working ok Up to a week ...
by sammy
Wed Sep 19, 2012 6:27 am
Forum: Tuning Fuel and Air
Topic: poor idle and high revs
Replies: 20
Views: 2016

Re: poor idle and high revs

Ok folks

Just to confuse things further, here is tonight’s installment …. Your thoughts would be much appreciated.

The car idles - but its still really rough.

I tried a number of things, I testing each injector, injector leads and plugs, replaced spark plugs and leads etc … but it was No Bloody ...
by sammy
Tue Sep 18, 2012 6:16 am
Forum: Tuning Fuel and Air
Topic: poor idle and high revs
Replies: 20
Views: 2016

Re: poor idle and high revs

sorry , I forgot the attachments in the previous post
Sam
by sammy
Tue Sep 18, 2012 6:13 am
Forum: Tuning Fuel and Air
Topic: poor idle and high revs
Replies: 20
Views: 2016

Re: poor idle and high revs

Trakkies
I still haven’t ruled out a leaky manifold gasket causing a rough idle. I’m getting a new one and I’ll try it this coming weekend.
Meanwhile I took some of Bluehazes’ suggestions and did notice an improvement - but not a total fix .

Bluehaze ,
Although I ran my car with MSII managing ...
by sammy
Mon Sep 17, 2012 5:05 am
Forum: Tuning Fuel and Air
Topic: poor idle and high revs
Replies: 20
Views: 2016

Re: poor idle and high revs

Hi Trackies
Thanks for your help .... (yet again ... :-) )

Vacuum Leak
The though did cross my mind, I checked all the vacuum yesterday hoses but I can’t really see an issue.

I built a vacuum plenum with all the throttle bodies plumbed up into it and the MAP sensor hose comes off it and goes to ...
by sammy
Sun Sep 16, 2012 8:05 pm
Forum: Tuning Fuel and Air
Topic: poor idle and high revs
Replies: 20
Views: 2016

Re: poor idle and high revs

sorry Folks I just realised I accidenlty uploaded 2 log files .
The second file was supposed to be the uploaded MSI file. Please ignore the second one. i will upload the MSI when I get howm from work. Meanwhile the first Log file is correct
Sam
by sammy
Sun Sep 16, 2012 5:11 pm
Forum: Tuning Fuel and Air
Topic: poor idle and high revs
Replies: 20
Views: 2016

poor idle and high revs

Hi everyone,
Apologies if my questions are dumb or if I missed something obvious in the Tuning guide.
I’m in the middle if re-reading it but get my head fully around it
Before I ask the questions, here is the background.

Background
The car is a 2ltr 1979 Alfa Romeo Sedan
The motor is a little ...