alex2jz Posted April 19, 2009 Share Posted April 19, 2009 Ok guys bear with me a bit. One morning my original small Supra battery decided to die. As i was in a hurry i've picked up a normal sized battery, with bigger connectors and managed to fit the original connectors on to it by bending them. All was OK. After a few days i decided to replace the connectors with bigger ones as well to fit the new battery better. Now the car starts very hard( previously it started instantly as i switched the key) and everything inside is trembling and making weird noises in idle. What's funny is that it's the same battery that ran fine with the old bended connectors. I've changed a couple of batteries from then and same stuff is happening. The new connectors are brand new and well tightened. My question is where can i get original battery conectors for a 1997 Supra N\A , including the positive part thing which i've drilled a bigger hole for the new connector to fit it? I've atached a pic with what i would need(pic is of the old battery). I really want my car working like a few weeks ago. Thanks! Quote Link to comment Share on other sites More sharing options...
supra_si Posted April 19, 2009 Share Posted April 19, 2009 id liek to know theis too as mine are like butter, very weak Quote Link to comment Share on other sites More sharing options...
j_jza80 Posted April 19, 2009 Share Posted April 19, 2009 Just buy a pair of universal connectors from Halfrauds. I changed my battery recently and it was quite easy Quote Link to comment Share on other sites More sharing options...
alex2jz Posted April 19, 2009 Author Share Posted April 19, 2009 Just buy a pair of universal connectors from Halfrauds. I changed my battery recently and it was quite easy Do they have small battery terminals like the original ones on the Supra? I cant seem to find. I want also to go back to a small battery for Japanese vehicles. Maybe you can add a link mate. Thks Quote Link to comment Share on other sites More sharing options...
merckx Posted April 19, 2009 Share Posted April 19, 2009 (edited) If you've fitted the larger terminals to the battery correctly and if you're still having problems then the cause will be elsewhere. Buying new smaller terminals and bending them again to fit the larger battery is just crazy in my opinion. Edited April 19, 2009 by merckx (see edit history) Quote Link to comment Share on other sites More sharing options...
madmarf Posted April 19, 2009 Share Posted April 19, 2009 are the ones you have on now the slide in cable style? then 2 flat screws to hold the cable in place? if so then you need to fit as much cable in there as possible, even overlapping in to pack in up inside otherwise is will not get a good earth at all! thats what it sounds like. Quote Link to comment Share on other sites More sharing options...
alex2jz Posted April 20, 2009 Author Share Posted April 20, 2009 If you've fitted the larger terminals to the battery correctly and if you're still having problems then the cause will be elsewhere. Buying new smaller terminals and bending them again to fit the larger battery is just crazy in my opinion. No mate, along with the smaller terminals i'll be buying a small batery for asian vehicles , just like the original one i had inside. Quote Link to comment Share on other sites More sharing options...
alex2jz Posted April 20, 2009 Author Share Posted April 20, 2009 are the ones you have on now the slide in cable style? then 2 flat screws to hold the cable in place? if so then you need to fit as much cable in there as possible, even overlapping in to pack in up inside otherwise is will not get a good earth at all! thats what it sounds like. The new terminals have the same system as this one in the pic.(only a lot larger and very heavy). This is a genuine Supra battery terminal, which i can only seem to find in the US. Shipping is 120 bucks for 2 terminals lol.. Quote Link to comment Share on other sites More sharing options...
AlanM Posted April 20, 2009 Share Posted April 20, 2009 A terminal is a terminal, no need for supra specific. If they fit the battery and you have a good connection between connector and cable then the problem is elsewhere Quote Link to comment Share on other sites More sharing options...
madmarf Posted April 20, 2009 Share Posted April 20, 2009 The new terminals have the same system as this one in the pic.(only a lot larger and very heavy). This is a genuine Supra battery terminal, which i can only seem to find in the US. Shipping is 120 bucks for 2 terminals lol.. there clamp downs, you need big o ring connectors (cable size depending) on the end of the cable to secure them down, i see people all the time just wrap the cable round and tighten the nut lol. make sure its a good snug fit bud then as said before if its not made any difference and you have checked all the cables on the battery and the earth point / fuse box then problem is elsewhere. have you reset the ecu? Quote Link to comment Share on other sites More sharing options...
dangerous brain Posted April 20, 2009 Share Posted April 20, 2009 Changing the battery will have reset the ECU. Just a wild stab but if your O2 sensor or another sensor was starting to give inaccurate readings would the ECU have learnt that fact and now it doesn't know? Quote Link to comment Share on other sites More sharing options...
madmarf Posted April 20, 2009 Share Posted April 20, 2009 Changing the battery will have reset the ECU. Just a wild stab but if your O2 sensor or another sensor was starting to give inaccurate readings would the ECU have learnt that fact and now it doesn't know? i doubt it, hes getting hard start from cold. you need to have the battery disconected for at least 1 minute to reset the ecu, did you do this? Quote Link to comment Share on other sites More sharing options...
TTRickeh Posted April 20, 2009 Share Posted April 20, 2009 On the ECU reset point, i've reset my ECU quite a few times and it takes a bit of driving to get it back to normal with a slightly shuddery idle til it 'learns itself' again, could be that. I have larger battery connections with no problem as a side note but I don't see why that would cause any issue unless they weren't connected properly. Quote Link to comment Share on other sites More sharing options...
dangerous brain Posted April 20, 2009 Share Posted April 20, 2009 i doubt it, hes getting hard start from cold. you need to have the battery disconected for at least 1 minute to reset the ecu, did you do this? I'm guessing that it took him longer than a minute to take the old battery clamps off and put new ones on dude, battery would have been disconnected all that time I would imagine. Quote Link to comment Share on other sites More sharing options...
alex2jz Posted April 20, 2009 Author Share Posted April 20, 2009 i doubt it, hes getting hard start from cold. you need to have the battery disconected for at least 1 minute to reset the ecu, did you do this? Numerous times, yes. I'm 100% sure it doesn't like the new connectors lol. I mean it's weird now it works great with the bended old ones , than i switch to the new ones and with the same battery and it runs awful.. And the ECU had time to learn after the reset as i've driven a lot from then. Also the new ones came with appropriate o ring connectors... so that's not an issue either. Thing that pisses me off is that i've drilled the positive part to fit the extra large bolt of the new connector and now i'm asking myself how am i supposed to come back even to an average sized connector without replacing that too.. Quote Link to comment Share on other sites More sharing options...
madmarf Posted May 10, 2009 Share Posted May 10, 2009 I'm guessing that it took him longer than a minute to take the old battery clamps off and put new ones on dude, battery would have been disconnected all that time I would imagine. ah, good point Numerous times, yes. I'm 100% sure it doesn't like the new connectors lol. I mean it's weird now it works great with the bended old ones , than i switch to the new ones and with the same battery and it runs awful.. And the ECU had time to learn after the reset as i've driven a lot from then. Also the new ones came with appropriate o ring connectors... so that's not an issue either. Thing that pisses me off is that i've drilled the positive part to fit the extra large bolt of the new connector and now i'm asking myself how am i supposed to come back even to an average sized connector without replacing that too.. May have missed something bud but are you using the new connectors with a new battery? visa versa? battery maybe be knakard! just a shot Quote Link to comment Share on other sites More sharing options...
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