J4AVX Posted December 28, 2023 Author Share Posted December 28, 2023 On 12/24/2023 at 8:50 AM, Swampy442 said: Its likely a bad battery wont let it start but personally, I dont think thats the issue, If it was the ECU you'd have a 'hard fault' and it wouldnt start regardless. Id leave that as you know it works for now But congrats on getting it going Thanks! Very chuffed it's up and running, been driving it few days and no issues so far Quote Link to comment Share on other sites More sharing options...
AC93 Posted December 28, 2023 Share Posted December 28, 2023 Test the new ECU, make sure it works fine and keep as a spare Quote Link to comment Share on other sites More sharing options...
J4AVX Posted December 31, 2023 Author Share Posted December 31, 2023 For anyone who's interested, here are some pictures of the car (Back in Summer'23). 5 Quote Link to comment Share on other sites More sharing options...
nolizma Posted January 8 Share Posted January 8 She's a beauty! Quote Link to comment Share on other sites More sharing options...
J4AVX Posted January 8 Author Share Posted January 8 1 hour ago, nolizma said: She's a beauty! Thanks Quote Link to comment Share on other sites More sharing options...
J4AVX Posted February 25 Author Share Posted February 25 Hi All It's me again! I think I've developed a new problem with my GS300. It doesn't start up, cranks but just doesn't tick over (could be related to previous fault where it started but cut out immediately but that's not the case now). So I replaced main ECU, no fix. Looked at the fuel pump and fuel pump ECU in the boot and might be an issue? I've put the car ignition on and then took the fuel pipe in the engine bay out and its not spitting any fuel out? I would have expected fuel to be gushing out when ignition is on which should signal the pump to come on? How can I check fuel pump ECU? Is it worth replacing? Any thoughts or ideas very much appreciated! Quote Link to comment Share on other sites More sharing options...
rider Posted February 26 Share Posted February 26 There are differences with fuel delivery and circuitry in NA or TT or modified so it's not easy for anyone to be specific with a list of things to check. This link will give you some pointers to relay check and bypass but its specific to a TT setup which your car may or may not be. https://www.supraforums.com.au/forum/topic/73726-fuel-pump-issue-help-please/ Quote Link to comment Share on other sites More sharing options...
Scooter Posted February 26 Share Posted February 26 Second post can help you diagnose (again if this is the same as the NA Supra's) Quote Link to comment Share on other sites More sharing options...
J4AVX Posted March 3 Author Share Posted March 3 On 2/26/2024 at 2:32 PM, Scooter said: Second post can help you diagnose (again if this is the same as the NA Supra's) I have followed the steps and 'bypassed' the fuel pump ECU. I can hear the fuel pump but still no joy in the car starting up. I assume that the fuel pump ECU is working as its making a whining noise? Anything else i should be checking looking for? Quote Link to comment Share on other sites More sharing options...
Scooter Posted March 4 Share Posted March 4 So you had the fuel pump running by bridging the ports and heard the fuel flowing but it wouldn't start? it just turnover over, no coughs splutters or anything? You've swapped the ECU too so unlikely it's that (be perhaps ideal to check in another car but I appreciate that's not easy) So doesn't that leave us back to spark? grounding issues maybe https://www.supraforums.com/threads/2jzge-no-spark-help-pls.629999/ Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted March 4 Share Posted March 4 Distributer? Quote Link to comment Share on other sites More sharing options...
Suprakeith Posted March 5 Share Posted March 5 I would also look at distributer and double check timing as i currently having issues with mine and believe distributer is problem, also check all your earth points as i had problem couple years and was the power cable from fuse box plus the earth near fuse box was bad Quote Link to comment Share on other sites More sharing options...
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