TrickTT Posted January 27, 2009 Share Posted January 27, 2009 I was doing some datalogging on my RLTC yesterday and i've got a couple of strange rpm spikes on the graph: and zoomed right in: I was slowing down for a junction at the time and the wheel speed and cuts are normal, its just the huge rpm spike to nearly 8500rpm. The RLTC gets its rpm signal from the ignitor feedback, and its not recorded on my AVCR rpm graph. It never happened again in about 20 minutes driving. I've had very occasional (1 or 2 times a year) problems with what i thought was the RLTC causing the engine to stall, and i'm now guessing that a similar spike up to the RLTC's hard rev limit which is at 10000rpm could cause the engine to cut. Does anybody have any idea what might be causing this and more importantly, how to stop it happening again? Thanks. Link to comment Share on other sites More sharing options...
Pete Posted January 27, 2009 Share Posted January 27, 2009 I'd have ordinarily said dodgy wiring, but it's you so I wouldn't dare! What else is tapping into that RPM signal? I guess the AVCR is reading from another signal? Could the ignitor be generating a fault? Link to comment Share on other sites More sharing options...
SteveR Posted January 27, 2009 Share Posted January 27, 2009 Mobile phone interference? Link to comment Share on other sites More sharing options...
Terminator Posted January 27, 2009 Share Posted January 27, 2009 What is your minimum rpm setting on RLTC? Link to comment Share on other sites More sharing options...
TrickTT Posted January 28, 2009 Author Share Posted January 28, 2009 I'd have ordinarily said dodgy wiring, but it's you so I wouldn't dare! What else is tapping into that RPM signal? I guess the AVCR is reading from another signal? Could the ignitor be generating a fault? Only the RLTC takes its rpm feed from the ignitor, the AVCR and clifford take rpm signal from the tacho feed. I dont think its a bad signal from the ignitor or the ecu rev limit would come in at 7k rpm first. The connection from the loom to the RLTC is good, but i might consider shielding it. Mobile phone interference? Didn't have my phone in the car at the time What is your minimum rpm setting on RLTC? 2200 rpm. I can send you the setup file if you PM your email address. Link to comment Share on other sites More sharing options...
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