Gaz Walker Posted April 8, 2003 Share Posted April 8, 2003 This is one we're stumpted on - how many cars with RLTC have been dynod successfully? When Kevin Huntley's was put on the rolllers @ Well Lane the RLTC cut in at 2.5k rpm - every time, every gear even though the unit was turned off! After this didn't work, Michels brother came up with the idea of the RLTC having a fit when it didn't see the front wheels moving - thusly cutting power - so the ABS fuses were pulled in order to stop any pulses getting to the RLTC unit. That didn't work neither. Anyone have an ideas on this? Gaz. Quote Link to comment Share on other sites More sharing options...
Guest Martin F Posted April 8, 2003 Share Posted April 8, 2003 I've had mine on the rolling road and just had to switch the RLTC off. When you say it was switched off, was the little red LED on ? Quote Link to comment Share on other sites More sharing options...
Ian C Posted April 8, 2003 Share Posted April 8, 2003 I thought RLTC didn't kick in until a minimum speed had been reached anyway, like 8mph or something? So it wouldn't freak out if it's reading 0mph, would it? -Ian Quote Link to comment Share on other sites More sharing options...
Guest Martin F Posted April 8, 2003 Share Posted April 8, 2003 It works on the RPM signal, will cut in over the min RPM level. Whatever that may be set to. Quote Link to comment Share on other sites More sharing options...
Gaz Walker Posted April 8, 2003 Author Share Posted April 8, 2003 Originally posted by Martin F I've had mine on the rolling road and just had to switch the RLTC off. When you say it was switched off, was the little red LED on ? Kevin said the unit was off, I never seen it... he can answer that one... Gaz. Quote Link to comment Share on other sites More sharing options...
Matt Harwood Posted April 8, 2003 Share Posted April 8, 2003 I've had mine dyno'd too. No problems. Quote Link to comment Share on other sites More sharing options...
Nathan Posted April 8, 2003 Share Posted April 8, 2003 Bizarre. RLTC shouldn't be a problem on the RR. Are you sure it wasn't the OE system cutting in? Regards, Nathan TDI PLC Quote Link to comment Share on other sites More sharing options...
Guest Martin F Posted April 8, 2003 Share Posted April 8, 2003 Originally posted by Nathan Are you sure it wasn't the OE system cutting in? Now that's a good point. Quote Link to comment Share on other sites More sharing options...
Keith C Posted April 8, 2003 Share Posted April 8, 2003 Probably the reason too. Mine's been RR'd as well, although I did forget to turn it off on the first attempt at the run Quote Link to comment Share on other sites More sharing options...
Terminator Posted April 8, 2003 Share Posted April 8, 2003 Sounds a bit odd, but a quick fix would be to temporarily set the RPM in the RL dat to 8000. Quote Link to comment Share on other sites More sharing options...
Kevin Huntley Posted April 8, 2003 Share Posted April 8, 2003 Hi guys, thanks for trying to help! Just to clear a few things up the racelogic Traction control was in the off position and the red Led was on! I have pulled my Trac fuse so stock system should be disabled and I also switched it to off on the dash, just incase. So both traction lights were iluminated. I could not acelerate past 2500 rpm in any gear. The RLTC works fine on the road. The only problem I have had with it was trying to calibrate it manualy and I had the same problem where it would not calabrate and the revs would be limited at varying rev limits. I got round this problem by using the laptop to calabrate it using some settings Racelogic sorted out for me which they gleened from the mapped graphs I sent them! I have spoke to Racelogic about the problem and they have offered to bench test the unit. The only problem is its going to be a lot of hassle and I want to eliminate any other potential problems before I return it, any ideas what could be causing these syptoms? Thanks Quote Link to comment Share on other sites More sharing options...
Terminator Posted April 8, 2003 Share Posted April 8, 2003 Kevin, e-mail me a copy of your dat and I will take a look at it. E-mail PMed Quote Link to comment Share on other sites More sharing options...
Kevin Huntley Posted April 8, 2003 Share Posted April 8, 2003 Thanks Phil, I will try and borrow a laptop off a friend and download the file. I think your right about the quick fix, if only someone some one had the laptop and the software handy on the day Quote Link to comment Share on other sites More sharing options...
Guest Martin F Posted April 8, 2003 Share Posted April 8, 2003 The fact that it's starting to cut in at 2500rpm defenitely points towards the RLTC. I wonder if it's not switching off as it should for some reason. Kev - Is there nobody nearby who you could borrow an RLTC unit from and swap over and test with. Just need to jack the back of the car up and see if it cuts out when you spin the wheels with the RLTC off. Quote Link to comment Share on other sites More sharing options...
Kevin Huntley Posted April 8, 2003 Share Posted April 8, 2003 If only:( That would be the ideal solution but I don't know anybody up here who has Racelogic fitted. I tried to see if Racelogic would send me a loan box up for a small fee but they wouldn't play ball. I know its asking an extreme favour, but if anyone does have a unit lying around I would be willing to compensate them for a few days loan. Its worth a try! Thanks Kevin Originally posted by Martin F The fact that it's starting to cut in at 2500rpm defenitely points towards the RLTC. I wonder if it's not switching off as it should for some reason. Kev - Is there nobody nearby who you could borrow an RLTC unit from and swap over and test with. Just need to jack the back of the car up and see if it cuts out when you spin the wheels with the RLTC off. Quote Link to comment Share on other sites More sharing options...
Terminator Posted April 8, 2003 Share Posted April 8, 2003 Martin I agree, it does sound like the unit playing up and not turning off. I just thought by running the dat in my car I could eliminate the software side, as RL have tweeked it:eek: Quote Link to comment Share on other sites More sharing options...
THOR Racing Posted April 9, 2003 Share Posted April 9, 2003 Could it be that as the calibration didn't go well to begin with that it has the WRONG reference wheels set up? i.e. the ABS wires are just coloured and RL don't indicate which wire is for which ABS sensor as this is normally derived from the calibration proceedure. If you've been mixing up DAT files, could it be the RLTC is now confused as to which wheels are driven and which are reference? Just a thought. Can you confirm this part of the cal' went O.K. ? Regards Pete Quote Link to comment Share on other sites More sharing options...
Rich J Posted April 9, 2003 Share Posted April 9, 2003 How has the RLTC been wired up? Did you use the supplied connectors? I did on mine on the Teg and the whole system can be disconnected and the standard wiring connected back to itself in a matter of minutes. If yours has been set up this way it may be worth getting it on the RR again and disconnecting completely to get the RLTC completely out of the equation. Quote Link to comment Share on other sites More sharing options...
Kevin Huntley Posted April 9, 2003 Share Posted April 9, 2003 Originally posted by TRL Performance Could it be that as the calibration didn't go well to begin with that it has the WRONG reference wheels set up? i.e. the ABS wires are just coloured and RL don't indicate which wire is for which ABS sensor as this is normally derived from the calibration proceedure. If you've been mixing up DAT files, could it be the RLTC is now confused as to which wheels are driven and which are reference? Just a thought. Can you confirm this part of the cal' went O.K. ? Regards Pete Thanks Pete, I could not get the unit to calibrate at all, despite numourous attempts. In the end I just drove around a small round about on full lock and sent the mapped file to Racelogic. From that file they worked out which wheels were which and told me what settings to input on the laptop. Once the settings were uploaded the revs no longer cut in a set point in each gear and the unit seamed to operate as it should. I have had no problems with the unit since until I went on the rolling road at the weekend and the rev limit returned. Once off the rollers there was no sign of the rev limit and I was fine to drive home. Thanks Kevin Quote Link to comment Share on other sites More sharing options...
Guest Martin F Posted April 9, 2003 Share Posted April 9, 2003 Pete - If the RLTC is off it shouldn't even activate, surely ? It wouldn't matter what the cal info was when the unit is switched off IMO. As Hardhead says if yours has been wired using the connectors you may be able to join them together and bypass the unit completely and see what happens. Another alternative is to pull the fuse on the RLTC but i don't know what state this will leave the injector connections in. Quote Link to comment Share on other sites More sharing options...
Nathan Posted April 9, 2003 Share Posted April 9, 2003 Originally posted by Martin F Pete - If the RLTC is off it shouldn't even activate, surely ? It wouldn't matter what the cal info was when the unit is switched off IMO. Exactly. I know it's not much help but my money is on an installation/wiring problem. I can understand RL being cagey on sending you out another unit FOC; there are more than a few poor TC installations going around these days. If your installation checked out OK only then would I consider the box being at fault, or even maybe the pot in the control box. Regards, Nathan TDI PLC Quote Link to comment Share on other sites More sharing options...
THOR Racing Posted April 9, 2003 Share Posted April 9, 2003 Pete - If the RLTC is off it shouldn't even activate, surely ? It wouldn't matter what the cal info was when the unit is switched off IMO. Too true! Forgot that little bit.....Doh. Anyway this assumes we all KNOW how they designed their electronics inside. I was always planning to see how they isolated the injectors incase of power failure of the RLTC. I would hope that even if the box burnt up that the injectors would always default to the original ECU control. (i.e. imagine a bank of relays inside which when energised switch in the RLTC but when power is lost (or RLTC is OFF maybe) they relays always fail safe and allow the stock ECU to take over. Regards Pete Quote Link to comment Share on other sites More sharing options...
Guest Martin F Posted April 9, 2003 Share Posted April 9, 2003 Originally posted by TRL Performance I was always planning to see how they isolated the injectors incase of power failure of the RLTC. I would hope that even if the box burnt up that the injectors would always default to the original ECU control. Well you would hope so, but stranger things have been known. LOL Quote Link to comment Share on other sites More sharing options...
Rich J Posted April 9, 2003 Share Posted April 9, 2003 Originally posted by TRL Performance (i.e. imagine a bank of relays inside which when energised switch in the RLTC but when power is lost (or RLTC is OFF maybe) they relays always fail safe and allow the stock ECU to take over [/b] or alternatively: - no injector pulses/tow home. Quote Link to comment Share on other sites More sharing options...
SimonB Posted April 10, 2003 Share Posted April 10, 2003 I think it will just cut the injectors completely with no power, because in the troubleshooting section of the manual I remember it has a "Car will not start" section which goes on about checking the fuse and that the 12V supply does not go to ground when cranking. You can always unplug it and plug the connectors together if it blew up though (Assuming you had a screwdriver with you of course...) Quote Link to comment Share on other sites More sharing options...
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