Sounds like a possible sync loss. Post up a datalog and msqDrunken_M wrote:I fired the car now with the 630cc injectors, it worked ok.
But, when the rpm is between 7-800rpm, and 1200rpm and i hit the gas, sometimes the rpm goes to 0rpm for a sec and then reads correct again, and it pops in the exhaust of course. Could this be a tuning/software issuw, or just some problems with the signala from the vr or cam?
MS3X A4 1.8T Quattro Running and partically mapped
Moderators: jsmcortina, muythaibxr
Re: MS3X 1.8T got trigger signal, but fuel pumpt not running
Linfert Performance/321 Motorsports
SCCA 2019 SM National Champion Crew Chief
SCCA 2023 FP National Champion Tuner/electrical engineer
100s of MS systems built installed and tuned
Support the developers!
SCCA 2019 SM National Champion Crew Chief
SCCA 2023 FP National Champion Tuner/electrical engineer
100s of MS systems built installed and tuned
Support the developers!
Re: MS3X 1.8T got trigger signal, but fuel pumpt not running
I will post a log and the msq when im home again tonight.
But i will redo all the bad wiring first, but is there any good explenation to why i dont have trigger reading when i mount the side covers on the ms3 box?
But i will redo all the bad wiring first, but is there any good explenation to why i dont have trigger reading when i mount the side covers on the ms3 box?
-
- Super MS/Extra'er
- Posts: 6828
- Joined: Sun May 15, 2011 11:41 am
- Location: Walnut Creek, Calif. USA
Re: MS3X 1.8T got trigger signal, but fuel pumpt not running
"Bad wiring" is a good explanation for most any problem! Get that fixed first, let's see if the triggering issues go away after that.
Re: MS3X 1.8T got trigger signal, but fuel pumpt not running
Ive wired it all with good wires and real soldering. But still the same problem, i tried to solder in the 1kohm resistor from 5v to vrin. Then i had to adjust the r56 pot again, and the sync problem was not there anymore, i tought. The problem now appears at 3000rpm instead.
-
- Super MS/Extra'er
- Posts: 1978
- Joined: Wed Apr 15, 2009 11:31 am
- Location: Oxford, PA
- Contact:
Re: MS3X 1.8T got trigger signal, but fuel pumpt not running
Can you get a tooth log of a rev up there? The stock sensor on that motor, both pots fully ccw should have no sync problems past 9600rpm.
Re: MS3X 1.8T got trigger signal, but fuel pumpt not running
I have made some logs, but i dont need to post them, i just tried in one last attempt to change vr sensor polarity, and guess what? No more sync problems and car is running great
I guess all the info i got on the aeb 2 connector ecu was not correct on the vr sensor polarity.
I guess all the info i got on the aeb 2 connector ecu was not correct on the vr sensor polarity.
Re: MS3X 1.8T Running and partically mapped.
Glad to hear it! Safe tuning, and please post updates! Video?!
Forget the porn, my bathroom is full of car manuals...
1977 Rabbit (retired)
1991 Cabriolet (retired)
1977 Rabbit (retired)
1991 Cabriolet (retired)