DmwEP91 Posted July 7, 2015 Share Posted July 7, 2015 Hi Everyone I've just joined, I tried to change the dash bulbs in my 99 EP91 and since then its only running on low boost and my speedo isn't working. I tried reconnecting everything again and still nothing. I'm at a loss as to what it could be and its probably something small,,any suggestions or tips is greatly appriciated. TIA Quote Link to post Share on other sites
DmwEP91 Posted July 8, 2015 Author Share Posted July 8, 2015 (edited) w Edited July 8, 2015 by DmwEP91 Quote Link to post Share on other sites
Stu Posted July 9, 2015 Share Posted July 9, 2015 Are you sure you have everything plugged in properly? The speedo drive is a bit tricky to get it clipped in properly. Any the low/high boost switch takes its earth via the boot gauge in the cluster so if the plug isn't in properly it wont activate high boost Quote Link to post Share on other sites
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