Guest d1ckyboy Posted March 7, 2007 Share Posted March 7, 2007 A quick question for ya's guys. I have a 1994/1995 plate non turbo (sz) imported mkiv supra with a bad tendency to flash up the red exclamation warning light on the dash as well as the yellow engine light. It happens (both engine an exclamation lights come on at same time) when i accelarate and hit around 3000rpm and it stays on till i stop and shut engine off. Heres a few pics of what i'm talking about http://img525.imageshack.us/img525/9677/suprarevoa9.jpg http://img296.imageshack.us/img296/5483/supraenglightty0.jpg The Overdrive light at bottom of rev counter also flashes on and off at same time as above. I'm unsure if this is related though I have had a look on this site with no real definate answers, i've checked the brake fluid and it well up to “MAX” and also checked all engine bay fuses and checked the bulbs as well with no success either. They're all intact. Does anyone have any ideas what it could be up with my poorly car ? Link to comment Share on other sites More sharing options...
tooquicktostop Posted March 7, 2007 Share Posted March 7, 2007 you should ask for this to be moved to the tech section as this is for in car entertainment;) Link to comment Share on other sites More sharing options...
supRo Posted March 7, 2007 Share Posted March 7, 2007 Check the error codes mate, easy to do: http://www.mkivsupra.net/vbb/showthread.php?t=35920 Link to comment Share on other sites More sharing options...
JustGav Posted March 7, 2007 Share Posted March 7, 2007 My guess, would be error code 42... It could very likely be your speedo convertor. Link to comment Share on other sites More sharing options...
Guest d1ckyboy Posted March 7, 2007 Share Posted March 7, 2007 My guess, would be error code 42... It could very likely be your speedo convertor. Ok cheers man. Is that the speed sensor code ? Any ideas how much a new one of these is ? As i don't want to go to toyota and get ripped off And another thing what is and what does the speedo covertor do ? Does it just adjust speedo to suit mph ? P.s the dash on this car still shows kph Link to comment Share on other sites More sharing options...
Ian W Posted March 7, 2007 Share Posted March 7, 2007 Ok cheers man. Is that the speed sensor code ? Any ideas how much a new one of these is ? As i don't want to go to toyota and get ripped off i doubt you'll need a speed sensor mate. probably just something dodgy with your speed convertor. if it is a code 42 have a gander at the speed convertor and if it's not a thor one, swap it for one. Link to comment Share on other sites More sharing options...
JustGav Posted March 7, 2007 Share Posted March 7, 2007 First confirm the codes that are generating the fault before you start doing anything else... Once you have established the code, then the right steps can be taken. Link to comment Share on other sites More sharing options...
Guest d1ckyboy Posted March 7, 2007 Share Posted March 7, 2007 i doubt you'll need a speed sensor mate. probably just something dodgy with your speed convertor. if it is a code 42 have a gander at the speed convertor and if it's not a thor one, swap it for one. Where is the speedo convertor ? And how much is one of these ? As i don't wanna go and waste money on changing it if i don't need to As for the thor one, whats the difference between that and a normal one ? Link to comment Share on other sites More sharing options...
Guest d1ckyboy Posted March 7, 2007 Share Posted March 7, 2007 First confirm the codes that are generating the fault before you start doing anything else... Once you have established the code, then the right steps can be taken. I think it sounds like code 42. but now i'm unsure of what steps to take now Link to comment Share on other sites More sharing options...
JustGav Posted March 7, 2007 Share Posted March 7, 2007 Check the code, very easy to do.. If it is a 42, then I would have a look for your speedo convertor (I know you said you dash says kph, but does it reflect mph speed) and then possibly remove it. It is likely to be in one of two locations, more than likely is behind the dash, which is easy to do.. or it will be in the footwell next to the ECU. Link to comment Share on other sites More sharing options...
Guest d1ckyboy Posted March 7, 2007 Share Posted March 7, 2007 Check the code, very easy to do.. If it is a 42, then I would have a look for your speedo convertor (I know you said you dash says kph, but does it reflect mph speed) and then possibly remove it. It is likely to be in one of two locations, more than likely is behind the dash, which is easy to do.. or it will be in the footwell next to the ECU. and how easy is speed convertor to take out and if i take the speed convertor out what will happen to speedo then ? and will it affect my car at all ? driving wise. Link to comment Share on other sites More sharing options...
JustGav Posted March 7, 2007 Share Posted March 7, 2007 It won't affect the driving of your car, other than return it to japan limitations.. ie the speedo will read in true kph, and it will be limited to 110mph... Link to comment Share on other sites More sharing options...
turbonut Posted March 7, 2007 Share Posted March 7, 2007 It sounds daft but I take it you checked your oil level too and consistancy, as your oil indicator light is on in one of your photos? Hope you get it sorted Link to comment Share on other sites More sharing options...
JustGav Posted March 7, 2007 Share Posted March 7, 2007 It sounds daft but I take it you checked your oil level too and consistancy, as your oil indicator light is on in one of your photos? Hope you get it sorted I think the oil lights are on, because the car is in pre-start and hasn't actually been started, if you look the temp gauge is all the way at the bottom. Link to comment Share on other sites More sharing options...
Ian W Posted March 7, 2007 Share Posted March 7, 2007 It sounds daft but I take it you checked your oil level too and consistancy, as your oil indicator light is on in one of your photos? Hope you get it sorted i think that's just because his ignition is turned to the first point, in which case all of his lights should be on Link to comment Share on other sites More sharing options...
Guest d1ckyboy Posted March 7, 2007 Share Posted March 7, 2007 It won't affect the driving of your car, other than return it to japan limitations.. ie the speedo will read in true kph, and it will be limited to 110mph... Ok cheers bud Does anyone know how to disconnect this speedo convertor ? And what it looks like ? Link to comment Share on other sites More sharing options...
Guest d1ckyboy Posted March 7, 2007 Share Posted March 7, 2007 i think that's just because his ignition is turned to the first point, in which case all of his lights should be on Thats correct dude, the keys just turned to first couple of click s:) Link to comment Share on other sites More sharing options...
JustGav Posted March 7, 2007 Share Posted March 7, 2007 The speed convertor is most likely behind the clocks or the odo... You will need to take those panels out and look for something which is inserted into the loom, usually around 4 wires, it should be fairly obvious that it shouldn't be in there. If you look for a fitting guide on here, then you will know which wires to check and then follow the reverse of the fitting guide. Link to comment Share on other sites More sharing options...
Guest d1ckyboy Posted March 7, 2007 Share Posted March 7, 2007 The speed convertor is most likely behind the clocks or the odo... You will need to take those panels out and look for something which is inserted into the loom, usually around 4 wires, it should be fairly obvious that it shouldn't be in there. If you look for a fitting guide on here, then you will know which wires to check and then follow the reverse of the fitting guide. Ok cheers man. Link to comment Share on other sites More sharing options...
GLENN STONEHAM Posted March 7, 2007 Share Posted March 7, 2007 I had this problem recently on my 94 non turbo auto. Gear changes 1 to 2 became non smooth at times & it all got worse over time incl the warning lights thing. Mine is not restricted or delimited or speed converted but it still happened. I did the well known code 42 fix (code 42 was showing) & everything solved .GREAT!. Its easy to do & involves bypassing some of the circuits of the odometer part of the dash(top left section) . There are/ is a usefull guide on here if you do a search for code 42 fix. just 2 little wires involved. The dry soldering breaks down interupting the speed sensor signal through the odo unit. Link to comment Share on other sites More sharing options...
Guest d1ckyboy Posted March 9, 2007 Share Posted March 9, 2007 I had this problem recently on my 94 non turbo auto. Gear changes 1 to 2 became non smooth at times & it all got worse over time incl the warning lights thing. Mine is not restricted or delimited or speed converted but it still happened. I did the well known code 42 fix (code 42 was showing) & everything solved .GREAT!. Its easy to do & involves bypassing some of the circuits of the odometer part of the dash(top left section) . There are/ is a usefull guide on here if you do a search for code 42 fix. just 2 little wires involved. The dry soldering breaks down interupting the speed sensor signal through the odo unit. Can i ask what wires (circuits) needed bypassed and how you done it ? As i aint had much luck searching :( And the wire colours would be good as well.. And do i need to take dash apart to do it ? I.e. Face of dash around dials etc If i do is this a labour/time consuming job ? Or is it all push fit panels and fittings ? And could a novice do it ? P.s Lucky enough my gearchanging from 1 to 2 is ok so far touch wood, the only gear issue is the overdrive light flashing in sync with Red Exclamtion Light Cheers for your time and help Link to comment Share on other sites More sharing options...
GLENN STONEHAM Posted March 10, 2007 Share Posted March 10, 2007 You should find it here http://www.mkivsupra.net/vbb/showthread.php?t=72588&highlight=code+fix if that link doesnt work (not all that with computers) find it on the mk iv technical forum.use search button, type in code 42 fix click go for show threads and a long list will come up. its about the 3rd one down started by Dave on 21/06/06. I would say you should not do exactly as he says on the 1st page with the pink wire but look at the diagram on page 5 of the thread by Dr Doom on 26/11/06. The pink wire on the plug side should be taped off not the loom side ie as the diagram shows. To remove the top part of the dash undo the 5 screws and pull out of the 2 clips (1 at each end) then unclip the connecter plugs to the odo (left) & warning lights (right).Now cut/splice wires as shown. As a seperate issue,the soldering often fails on the warning light circuit & 2 of my oil lights werent working so I carefully soldered the the appropriate bits & got those working too. Best of luck Mate. Glenn. Link to comment Share on other sites More sharing options...
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