Blueman33

The red light in the center of the dash flickers when I take my foot off accelerator and rpm drops down to idle.

It will do it moving or stopped.

It does not prompt another error light.

It flickers, but doesn't stay lit.

Any clue?

Ski

It could be a ground issue but have you checked the switch under the emergency brake?

Porsche-O-Phile

Either that or the exciter wire to the alternator, voltage regulator, or alternator itself is going bad to the point where at low RPM the alternator isn't putting out enough juice. Either that or the idle is too low, that could also cause it I suppose. . .

84black944

Check to make sure anything else doesnt light up with it. My 86 951 under hard acceleration did the same thing but i saw the brake light and looked, my fluid was just at the min so when i accelerated hard it moved it under min for a short time resulting in flashing the ! light

T-Man

What fluid are you refering too 84 black 944? I had the same problem with the Ebrake wiring, double check its simple. Check the Ebrake wiring, like Ski suggested.

Jsquared

could also be thin oil causing oil pressure to drop just under the threshold to kick the light on for a split second, next time see if the oil pressure light flickers at the same time as the " ! " light (happens on our 951 after enough hard running to heat the oil up a good bit, going to go to a thicker weight oil at next change, doubt dad will even notice considering he rarely drives it or does anything with it)

SimonK

Rear brake switch...?

84black944

oh sorry i meant the brake fluid

Blueman33

Maybe it's the oil. Last track session, 95 degree outside temp my oil pressure dropped, the light went onto flickering. I checked the oil and had not burned a drop.

The guys at the track said, 1. get the auxillary oil cooler, 2. ditch mobile one 0-30 and get 15-50.

However, it didn't flicker once back to normal, non track driving.

I'll check all the above suggestions and get my oil cooler and heavier oil

Thanks

Dilberto

either a bad ground, or crossed wire. Good luck tracing the problematic circuit. Try checking only those items that required any work done. If you dont recall replacing the oil sending unit...then scratch that as a possibiolity.

Zach

chapstic951

1. Low on oil/ low oil pressure
2. Loose speed and/or reference sensors
3. E-brake loose
4. Crossed wires on oil pressure sending unit

....just my 2 cents.

emwporsche

Mine does the same, I'm thinking it's a ground because when I get the red light on I pull up the e-brake a little bit and the light gets brighter (fully lit).

does your's do the same?