Guest Paul86510 Posted December 30, 2005 Share Posted December 30, 2005 I have a toyota supra and it is a non-turbo with a turbonetics turbo upgrade converting it to a turbo. My problem- i had an accident and since the accident the car has not run right. There were codes thrown and they were missfire codes, too lean code, oxygen sensor 1 malfunction,and oxygen sensor 1 running slow during testing. I replaced the spark plugs, cause all 6 of them were fouled out, and that fixed the missfires. I also replaced the fuel filter, and both oxygen sensor 1 and oxygen sensor 2 and it did nothing for me. I will start the car and it runs fine at idle,but when i slowly start pushing down the accelerater climbing from 1000 rpm to 1500 rpm it does fine but as soon as I hit 2000 rpm it drops down below 2000 rpm and if i sit there and keep the accelerater at the same place it took to reach 2000 rpm it will repeatidaly drop and go back up and drop below 2000 rpm. If I drive the car it does the same thing, but when I drive it will go over 2000 rpm and drive but it acts like its not getting gas and will slow down and then kick back in and go, but i replaced all fuel related parts, also put in lucus fuel injector cleaner and that didnt work either. I need help, and any you can supply will be greatly appriciated. thank you Link to comment Share on other sites More sharing options...
SupraHuman Posted December 30, 2005 Share Posted December 30, 2005 what kind of accident,did you damaged the engine or just bodywork?.are you running a piggyback ecu?how many rpm's does it drop below 2000?have you checked your AFR?Sound like you are running to lean. Link to comment Share on other sites More sharing options...
Guest Paul86510 Posted December 30, 2005 Share Posted December 30, 2005 What is AFR? Just body work damaged, yes running piggyback ecu, also check engine light came on and threw a code saying it was too lean... I'm lost!!! HELP!! Link to comment Share on other sites More sharing options...
bromy Posted December 30, 2005 Share Posted December 30, 2005 is your maf connected properly? Link to comment Share on other sites More sharing options...
Guest Paul86510 Posted December 30, 2005 Share Posted December 30, 2005 Yes-is it possible it could be shorted out, any way to check a short in this- I dont think that is it though...... Link to comment Share on other sites More sharing options...
bromy Posted December 30, 2005 Share Posted December 30, 2005 did you reset the ecu after all the faults? try http://www.clubna-t.com/forums/ and http://www.supraforums.com/forum/index.php in the n/a section Link to comment Share on other sites More sharing options...
SupraHuman Posted December 30, 2005 Share Posted December 30, 2005 AFR=air/fuel ratio.is it the map-ecu you are running,if so you can access that via a lap-top and sort out your lean spots. Link to comment Share on other sites More sharing options...
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