ABS Light and sputtering Speedometer, Elise - LotusTalk - The Lotus Cars Community
 
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post #1 of 3 (permalink) Old 10-13-2018, 04:01 PM Thread Starter
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ABS Light and sputtering Speedometer, Elise

So I did a bit of searching on the topic, but got a few different results from it. Wondering if anyone has experienced what I'm experiencing.

Basically, I was at a track day. 2 sessions in and it's pretty rainy. My first time tracking in the rain. Took it easy. Have lunch, classroom...get ready for my 3rd session. Instantly notice ABS Light and Speedo is jumping. ABS Light stays on and while the Speedometer is tracking my actual speed, it'll sporadically jump and sputter. Halfway through the session, ABS light had gone off and speedometer was working ok. Pick up the pace a little, ground is still a little wet. Brakes lock up in a semi-hard braking zone and I ride into some gravel. ABS light on. Pitted in. Didn't even bother with the 4th session.

Now for the rest of the day, the ABS light has stayed on...and again while the Speedo tracks my speed, it'll still jump and spike. I should also note that I noticed the Speedo jumping at idle and it seemingly affected my idle speed.

My guess is something with the wheel speed sensor. But don't really know where to begin. Any advice is much appreciated.

2007 Chrome Orange Lotus Elise

Last edited by gstomp06; 10-14-2018 at 08:37 AM.
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post #2 of 3 (permalink) Old 10-14-2018, 08:26 AM
glb
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This happens to me occasionally.

I cleaned the wheel speed sensors with Deoxit, my favorite contact cleaner.

When I change to my winter (A/S) tires, I will either wrap the sensor with silicone tape (sticks only to itself) or slather it with sealant.

Leaning towards the tape.

05 elise (BOE Rev300 supercharged, SSRs, shift tower mods, Multivex; HID hi/low beams); 05 Corolla XRS. Past '72 Elan Sprint (I restored), Lotus 7 w/X-flow, TT Supra, Bugeye Sprite, BMW 2002 & 2002tii, '65 GTO.

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post #3 of 3 (permalink) Old 10-14-2018, 07:08 PM Thread Starter
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Quote:
Originally Posted by glb View Post
This happens to me occasionally.

I cleaned the wheel speed sensors with Deoxit, my favorite contact cleaner.

When I change to my winter (A/S) tires, I will either wrap the sensor with silicone tape (sticks only to itself) or slather it with sealant.

Leaning towards the tape.
Thanks, will crack into this week. My instructor also suggested grabbing a can of Deoxit. Just sucks to end the track season this way.

2007 Chrome Orange Lotus Elise
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