Making Your Flasher Relay LED Compatible Options

[Spoke]

This thread is meant to help those implementing LED turnsignals on their 914.

Standard flasher relays were designed to flash 2 standard bulbs (21W each) for turnsignals or 4 standard bulbs with 4-ways on.

LED replacements burn between 2W and 5W and electrically may not behave at all like a standard bulb. The LED replacements can cause all kinds of weird things like hyperflash (2x normal flash rate), dash indicators do not work, or the the flasher relay does nothing at all.

The 914 flasher is different for early cars 70-73 than later 74+ mainly because of the tach indicators. Early cars have individual L and R indicators and the 74+ have a single L+R indicator. Both are handled differently by the flasher.

There are LED-compatible flashers generally available at your FLAPS which are plug-in but not totally function compatible with the 914 standard flasher. The functional issue revolves around the 4th terminal which the 914 uses to activate the dash indicators.

The aftermarket flasher relays are EP26 (4 terminal) and EP36 (3 terminal). I've seen these at Pep Boys, Autozone, and Advance Auto to name a few FLAPS, usually for less than $15.

I'll detail the differences between early and late cars, as well as EP26 and EP36 in the next few posts.

[tmc914]

This is helpful. Changed the lamp for the m/c dash indicator and with e-brake on both turn signal dash indicators flash crazy. Ordered a modified EP26 relay from Spoke and will see what that does to help. If it does not fix the problem then I'll put a higher wattage lamp in the dash indicator.

[Spoke]

This is helpful. Changed the lamp for the m/c dash indicator and with e-brake on both turn signal dash indicators flash crazy. Ordered a modified EP26 relay from Spoke and will see what that does to help. If it does not fix the problem then I'll put a higher wattage lamp in the dash indicator.

What did you change the m/c dash indicator to? LED or other incandescent bulb? The OEM flasher was designed to flash normally with very little current to flash the m/c indicator with a 1 sec flash rate. Thus the OEM flasher doesn't hyperflash when LED turnsignals are installed. With the light m/c indicator current, the turnsignal dash indicators shouldn't flash.

In comparison, the 911 OEM flasher hyperflashes when one front or rear turnsignal is changed to LED. There's no debate that if the exterior turnsignals are converted to LEDs, the flasher must be changed to EP26.

EP26 will solve your turnsignal dash indicator issues. They will work normally although you'll find that after installing EP26, the L indicator will flash with the right turnsignals and the R indicator with the right turnsignals. To fix, simply pop the tach out and pull both indicator sockets out and swap positions.