rpm cutting out

vkjrocker · 09-06-2010, 08:53 PM

Just happily got my car back and breaking in the engine

right? It just so happens that at a random time when I was coming to a complete stop because of a yellow my car suddenly shuts off. Everything in the car is still working though... odd, I think to myself. I try to start the car again but what I noticed is that the RPM gauge isn't bouncing up like its supposed to be. Thanks to a tip from a buddy I checked the fuses to see if any were blown from the engine. None... So after sitting on the side of the road for a bit I try again to turn on the car and this time the RPM gauge comes back up and it starts again! This happened to me 3 times today randomly throughout the day. Could it be that the injectors happen to cut off fuel? help will be much appreciated.

RETed · 09-06-2010, 08:58 PM

You have an electrical problem in the car.
Sorry to be so generic, but there is no way to narrow down the problem without a thorough diagnosis.
With that said, it's a PITA to troubleshoot these kinda problems.

The tach dropping is an effect of the problem - not a cause.
It's normally for the tach to not work like that when you abruptly kill the power to the stock ECU.

-Ted

vkjrocker · 09-06-2010, 09:18 PM

electrical problems again... thanks for the help good sir.

Ptotherice · 09-07-2010, 04:22 AM

Could be the CAS with a bad connection. Drive around, shakes loose, no RPM signal means no start. Barely gets the connection, car starts. Intermittent problems like that tend to be a bad connection somewhere in the wiring. Just a quick 4:55 a.m. thought.

09-06-2010, 08:53 PM	#1
vkjrocker Rotary Fan in Training Join Date: Jan 2010 iTrader: (0) Posts: 32 Rep Power: 0	rpm cutting out Just happily got my car back and breaking in the engine right? It just so happens that at a random time when I was coming to a complete stop because of a yellow my car suddenly shuts off. Everything in the car is still working though... odd, I think to myself. I try to start the car again but what I noticed is that the RPM gauge isn't bouncing up like its supposed to be. Thanks to a tip from a buddy I checked the fuses to see if any were blown from the engine. None... So after sitting on the side of the road for a bit I try again to turn on the car and this time the RPM gauge comes back up and it starts again! This happened to me 3 times today randomly throughout the day. Could it be that the injectors happen to cut off fuel? help will be much appreciated.

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09-06-2010, 09:18 PM	#3
vkjrocker Rotary Fan in Training Join Date: Jan 2010 iTrader: (0) Posts: 32 Rep Power: 0	electrical problems again... thanks for the help good sir.

09-07-2010, 04:22 AM	#4
Ptotherice Rotary Fan in Training Join Date: Aug 2010 iTrader: (0) Posts: 39 Rep Power: 0	Could be the CAS with a bad connection. Drive around, shakes loose, no RPM signal means no start. Barely gets the connection, car starts. Intermittent problems like that tend to be a bad connection somewhere in the wiring. Just a quick 4:55 a.m. thought.