Guest mmbasstram Posted October 22, 2017 Share Posted October 22, 2017 so currently issue i am having is while the engine is running after a few minutes of driving it will shut off on me. i will start it back up sometimes it will run sometimes it will just cut right back off. had a friend tell me to disconnect the IAC and see if it ran and all it did was climb up to 4000 rpm and shut off. fuel pump, fuel pump eco, fuel filter, and EFI relay were replaced about three years ago. its a '95 NA supra. please any help would be appreciated so i can drive her all i want. Quote Link to comment Share on other sites More sharing options...
squiffy Posted October 23, 2017 Share Posted October 23, 2017 so currently issue i am having is while the engine is running after a few minutes of driving it will shut off on me. i will start it back up sometimes it will run sometimes it will just cut right back off. had a friend tell me to disconnect the IAC and see if it ran and all it did was climb up to 4000 rpm and shut off. fuel pump, fuel pump eco, fuel filter, and EFI relay were replaced about three years ago. its a '95 NA supra. please any help would be appreciated so i can drive her all i want.I had the exact same problem with my 1jz soarer, I don't know if the same applies to the supra? There was a fuel pump ecu that switches the pump between 2 speeds. You could bypass it by putting a link in the diagnostic port and make it run full speed all the time. That might be helpful or completely irrelevant [emoji23] Quote Link to comment Share on other sites More sharing options...
boostman Posted October 23, 2017 Share Posted October 23, 2017 If you have access to another ECU it would be a good idea to rule it out. When they start to fail thats how it starts. Mine did this at first, then moved to to the Rpm going erratic just before it cut out. Quote Link to comment Share on other sites More sharing options...
Dave Posted October 26, 2017 Share Posted October 26, 2017 take out the ECU and have a look at the board i was having similar probs and it was a blown capcitor,took it to my local tv repair man and he fixed it ,runs great now ,and only cost me a tenner Quote Link to comment Share on other sites More sharing options...
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