Strange issue ( solved)

General support questions and announcements for MS3. See also MS3 manuals.

Moderators: jsmcortina, muythaibxr

Post Reply
PUMPISH
Master MS/Extra'er
Posts: 436
Joined: Mon Jan 28, 2008 3:46 pm
Location: Sweden (Stockholm)
Contact:

Strange issue ( solved)

Post by PUMPISH »

MS3X cop inline six
A car has been working perfectly for several years and now I missfires.

Missfires came at the same time as boost.
I installed new coils, new injectors, new sparksplugs.
Same missfire.

Then I did output test mode.
First one injector at the time.
I choose 6 injections at the same.
ABCDF clicks 6 times
E clicks only one time

Then I put all the injectors connectors ON and try to ONE injector test mode again.
If i test inj E then it clicks only one time and the rest of 5 injectors it randomly splitt to other injectors but I choost only injector E.

Then I switched to a new MS3X card and now all injectors clicks perfect and the car is running much better BUT:
If i activate Table switch and use secound table it starts missfire again.
The tables 3 is Exactly the same as tables 1.

I have spartan OEM2 intern lambda modul and I installed it to a gaug in the car and it shows different value then in MS.
If the value is 14 in ms then the gauge shows 13
After i switched to a new ms3x card the value a different, when the ms shows 14 then the gauge shows 13.8

Another strange thing I can no longer mix richer mixture then lambda 0.80
Same thing at idle and at the boost, if i set richer fuel then 0.80 then the engine starts missfire and choke at the boost and chocke and die at idle.

Usualy i can run this engine richer then 0.70 without any chocke or missfire.

Here is MSQ and MSL
You can see at the log that I am running 0.80 lambda at 1.6 bar and If i go richer the engine will chocke.
The DC is 54-55% wich is too much.
I have 2200cc injectors and used to have DB above 50% at the boost above 2 bar
Post Reply