TrickTT Posted June 13, 2007 Share Posted June 13, 2007 I shall try and remember to post up my dat file tonight. Bear in mind I use Graham Rudd's application for setting up my RLTC, mainly as the pukka one BSODs my laptop at the moment. So that'll be the one I post up... If that's no good I'll screenie the settings and post those instead? -Ian That would be great Ian, i'll have a look when i get back from work in the morning. Link to comment Share on other sites More sharing options...
Sheefa Posted June 13, 2007 Author Share Posted June 13, 2007 Thanks Ian. Rich, a job for you at the BBQ mate! lol. You'll get a free TRD oil filter out of it Link to comment Share on other sites More sharing options...
snoot Posted June 13, 2007 Share Posted June 13, 2007 When i first fitted my RLTC i had a cutting out problem at low revs sometimes, usually when coming out of slow corners or pulling away from traffic lights. 1 evening i connected the RLTC up to my laptop to see if anything odd was happening. I found out that there was a huge spike in the rpm's being reported back to the RLTC and it was causing it to go past the RLTC's rev limit and making the engine cut out. Maybe that has something to do with it. I solved it by not using the RLTC rev limiter, it's never done it since. Link to comment Share on other sites More sharing options...
Sheefa Posted June 13, 2007 Author Share Posted June 13, 2007 When i first fitted my RLTC i had a cutting out problem at low revs sometimes, usually when coming out of slow corners or pulling away from traffic lights. 1 evening i connected the RLTC up to my laptop to see if anything odd was happening. I found out that there was a huge spike in the rpm's being reported back to the RLTC and it was causing it to go past the RLTC's rev limit and making the engine cut out. Maybe that has something to do with it. I solved it by not using the RLTC rev limiter, it's never done it since. That's the exact same symptoms as me Snoot. Thanks for the pointer I'll check it out. Link to comment Share on other sites More sharing options...
Terminator Posted June 13, 2007 Share Posted June 13, 2007 For those suffering these symptoms are you seeing a Code 14 fault, if you have checked!!! For those with RLTC have you set smoothing to 0. One RL's recommendation the early files I sent out had this set to 1, which is now considered unnecessary. I have a very similar fault showing up as Error 14, ignition circuit failures below 2000 RPM. Having monitored this very closely I have established that the problem occurs below 1000 rpm which is 1500 rpm below my RL limit which I set I way back in 2001. I still have the manual adjuster as I don't trust the digi one. If this problem is related to RL then my unit has suddenly developed a fault. I think this is unlikely. However I am willing to be proved wrong. I have a Field harness, so I will take RL out of the circuits and see what happens. I have so so far change the ECU and igniter pack, next are the coil packs. As my symptoms are random and very intermittent it may be sometime before the true cause is established. By removing the rev limit you are effectively allowing RL to cut at any rpm above the minium speed usually 14kph. This can cause bogging down if you pull away hard. That is why I set my rpm limit to 2500. Remember this limit is the level of RPM at which cut tables will be activated in slip conditions. Rpm above this limit will be ignored. It would be great to get this sorted out as soon as possible as it seems to be common. All most forgot, can RLTC users confirm that the RPM signal wire used for RL has no other after market devises using the same source. A shared RPM signal can cause spikes and low rpm engine cut. Link to comment Share on other sites More sharing options...
TrickTT Posted June 14, 2007 Share Posted June 14, 2007 Mine hasn't cut out for some time now, so this might be a bit out of date, but there are no fault codes on the ECU. I'm fairly sure i've had cutouts above 1000rpm, but its always been less than 2000 rpm. When it first started happening, i wondered if it might be noise from the abs sensors causing the problem, so I changed the smoothing from 0 back to 1. This considerably improved it, but didn't completely cure it. My rpm limit is set to 2200. Finally, my clifford intellistart is connected to the same ecu source as the racelogic. Link to comment Share on other sites More sharing options...
Nic Posted June 14, 2007 Share Posted June 14, 2007 I have the same problem at the moment when turning right at low speed, mine is definitely the RLTC as it stops missing if I turn it off or turn up the percentage. I need to check the wheel sensor signals on mine, the last time it happened was when the RLTC was not receiving a signal from the right rear wheel sensor. If you have the digital controller you can go to the graph feature for each wheel and see if the signal is being received by the RLTC. Ian could you post up your dat file? Link to comment Share on other sites More sharing options...
snoot Posted June 14, 2007 Share Posted June 14, 2007 Just to make things clear, i actually meant the rev limiter. I had it set at 6K so my girl friend would thrash out my car when she drove it. Link to comment Share on other sites More sharing options...
Terminator Posted June 14, 2007 Share Posted June 14, 2007 My problem is slightly different, I only get engine cut out on deceleration at slow speed below 2000rpm but most cuts are under 1000. By altering the smoothing, you are getting RLTC to ignore spikes and noise in the system up to a certain level. It will not discriminate between low level wheel spin or just system noise. If you were to set smoothing to its highest setting, it would take a considerable amount of slip before any cut was applied. The ideal is to have smoothing as low as possible. I know RL do not see the MKIV as needing any smoothing. I still can't get my head round whether it is RL's response to faulty stock components that is causing the problem or a problem generated by RL, I suspect it is the former. In Nic's case, it may be worth trying a new ABS sensor.Especially as he has has a sensor fault before. I would doubt that an alarm/starter package would having any impact on the RPM signal. I know RL would say find an alternative source for on of the units. I know this is not much good for Nic, but for UK members it may be possible to just swap RL units and see if the problem is duplicated in another car with RL and not experiencing problems. Link to comment Share on other sites More sharing options...
Ian C Posted June 14, 2007 Share Posted June 14, 2007 Ian could you post up your dat file? Oh I forgot I'm not going to have time to do it now until I get back from france next week You can check your wheel sensors for noise with the laptop software btw. -Ian Link to comment Share on other sites More sharing options...
Sheefa Posted June 15, 2007 Author Share Posted June 15, 2007 My cutouts have always been below 1500 rpm and normally happen when I'm turning into/out of a corner and gently put my foot down. It misses, like it's not getting fuel, and sometimes recovers but normally cuts out totally. I'm sure it's just another RLTC firmware glitch with 'some' units. Link to comment Share on other sites More sharing options...
Nic Posted June 15, 2007 Share Posted June 15, 2007 In Nic's case, it may be worth trying a new ABS sensor.Especially as he has has a sensor fault before. The sensor is okay as the ABS wasn't effected, the problem was a loose connection to the RLTC. Link to comment Share on other sites More sharing options...
Sheefa Posted June 15, 2007 Author Share Posted June 15, 2007 The sensor is okay as the ABS wasn't effected, the problem was a loose connection to the RLTC. From the ECU to the RLTC unit, or from the Digi to the RLTC unit Nic? Link to comment Share on other sites More sharing options...
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