Autosport Labs

My Adobe Reader is obsolete and for some unknown reason I can't download an upgraded version so I can't open the file, but I think I know which graphs you mean. The vacuum regulator your describe was for the US market only, mine is bog standard with only one vacuum line, so only normal advance and n...

Don't know exactly what you mean with correction diagrams, but here is the link to the maps I use on the Sonett. http://www.autosportlabs.org/viewtopic.php?t=3799 Looking at your maps i don't think it is a good idea to set advance so low at high vacuum. Mixture is lean so you need extra advance. Alex

I don't know where you looked but in de MJ default map there is a difference between the 10-20KPa maps and 102KPa. It is clever to increase advance at such low revs with increasing KPa, the engine picks up easier when you start to open the throttle. Check my second Saab Sonett map to see what I mean...

How about earthing, has the earth strap between engine and car body been refit again?

Alex

Are you sure that the MJ is completely powered up? The user ouputs become conductive once power to the MJ is switched off. The plus side to the relay must be hooked up to a citcuit that only has current with the key in the engine-on and start position.

Alex

There is something you should take note of: when power to the MJ is switched off the user outputs become conductive so the plus side of the relay must be connected to a circuit that only has current when the ignition key is in the position that the engine is running.

Alex

Swap cylinder 2 to coilpack contact 3 and cylinder 3 to coilpack contact 2 and you are ready.

Alex

How about the earthing of the engine block? No problems with corrosion at the earthing points?

Alex

Baud rate?

Alex

I never published the hardware bits I used for getting the trigger wheel and VR sensor in place, so here it is. The hardware of the whole setup that is V4 specific is not too much, but quite essential. There are of course more roads that lead to Rome, but the one I chose was the most practical one f...

Last week the first short drive on own power in more than 20 years; it was a happy moment .

http://youtu.be/u3dNYtB_Pzs

Alex

How rigid is your VR sensor brakcet? Might be it starts to vibrate at 5500rpm and that syncronisation isn't established again before rpm is down to ±1500rpm.

Alex

No and no.

Alex

Good to read you have your problems sorted out. It also shows the invaluable rule: get your basics right!

In Charting/Runtime View rpm is one of the variables that can be shown. You can record sessions.

Alex

Can you upload the map you are using? Check if there is no extra advance programmed in the Advance Correction. Don't think it is a vacuum problem. Test it by putting a loose hose to the MAP sensor and suck on the other side. Does the MJ react the same as when connected to the carbs?

Alex