Thread: exhausting issues

Originally Posted by bee utey

If your ECU sees more than a few km/h from the speed sensor it raises the idle speed. Nothing to do with pipes or the lack of them. If I was forced to own a D1/RRC V8 I would find and cut the speed sensor feed to the ECU. I installed a 14CUX onto a 110 County once without the speed input and it runs perfectly well.

Now that i think about it... when i was having problems when i first got the d1 it wouldnt rev passed 2500 rpm. As a quick fix i unplugged the speed sensor and it ran perfectly fine. After slotting the TPS the rev limiter stopped kicking in. Point is it ran fine withought the ECU feed