Today as i was driving the car’s engine turned off…it happened twice with medium to slow speed.
Obviously this could not have been any battery problems so upon my return i plugged VCDS.
The fault i found was in each bank the pretty standard warm up catalyst error due to my piggies (since i have not been able to flash the JHM tune) and a SAI insufficient flow on bank 2.
Could those faults have caused the car to shut down while on circulation?
Not likely. There are just pumps that run during start up. By the time your RPM is extended they will never be back on and they have been off for a long time.
When they car died can you give more information. Did the rpms drop and the dashboard lights all came on or. Did the car chug then die.
The rpms dropped and all lights on the dashboard came on.
The engine just shut down.
Turned the key, hit the button and it fired up immediately.
This happened after filling the gas tank. Could it be something with the fuel pump, some dust or sth?
Is yours a flashed ECU or physically “chipped”? If it’s the latter then the chip is know to become dislodged. However, I suspect you got flashed by cable so never mind
If it shit down when you were breaking check for vac leaks.
When was the last time your fuel filter was replaced?
@justincredible, what would be the suggestion if in were your other scenario, chugging and seemingly zero fuel pressure. But no dash lights. Also no power steering?
And seems to be very ambient temp dependant. Once car sits a few minutes, off she goes again. And never in cooler temps. Talking 90+°.
He has a stock tune doesn’t he?
Sometimes a faulty or failing CPS can be the culprit when it is temp related. The hotter it is the more they fail and then once the car has had enough time to cool they can be started back up again.
The chugging sounds like a possible fuel delivery issue though.
Seems so based on his first post in this thread. This one sounds like a fuel delivery issue as well. Interesting that it first happened immediately following a gas fill. Bad or contaminated gas?
Not flashed yet
About 200kms ago. It is brand new.
Bought a hand pump gauge and will be looking at it on Monday.
My first guess is bad gas or sth. Second is the fuel pump and the vac leaks.
Any codes?
Know we are talking 2 cars here. Sorry. But I have no codes what so ever. Frustrating. I have researched and comes back with engine speed sensor (cps) or bad fuel pump relay since no codes? Read a faulty cps would most likely kick out a fault code where the fp relay won’t. Is this true?
Sorry op but since I am seeing very similar symptoms figured I’d add to the discussion.
What car? allroad?
Sorry, my good old b5. No allroad in garage yet.
I would start a new thread and try out find a consistent way to make it stall. If you can’t trigger the car to stall by doing something to replace the issue over and over. Chances are it’s a failing part But not a part that has failed all the way. The thing about cars just dieing out is you won’t get a code unless the car stays on.
You can have a bad maf fuel issue or even cps and the car will die at low speeds with no codes or warning.
Fair enough. Thanks.
Most consistent and only way it stalls is high ambient temps cruising at highway speed. Lol
I think this is hard to make happen on demand then…