Toyota Tacoma Engine PCM ECM ECU Computer 8966104840 ENGINE 2RZ-FE 4 cyl Up for sale is a Working, in excellent condition Toyota Pickup truck ECU. My list shows this should fit many 2002 models with the 2RZFE 4cyl, 2X4, manual trans and FEDeral emission. To buy this unit new, you can easily spend 8X what I have it listed for here used! This from a crashdamaged car. This unit was runtested on the car before breaking it up for parts! Always keep a spare ECU, even if you don't need it. TACOMA 02 Elec Cont Unit (ECU); (R. dash), 4x2, 4 cyl, reg cab, exc. Pre Runner; (2RZFE eng), MTTACOMA 02 Elec Cont Unit (ECU); (R. dash), 4x2, 4 cyl, Xtra cab, exc. Pre Runner; (2RZFE eng), MT See part numbers at the top of the listing. - . This unit offers a 30 day functionality warranty. As always with this type of component your best bet is to match the part number to the one on your original ECU. A faulty ECU is one of the most common no start or random stalling problems with these trucks. these can also cause issues with erroneous check engine lights, idle control problems as well as emission control & cold or hot start problems. I have also seen fuel pump relay turn on faults (ECU won't turn on the fuel pump), as well as an condition where the high speed injector driver has failed. This causes the car to sit and idle fine, but it won't accelerate.If your car does not have these issues but you intend to keep it a while, I recommend our customers keep an extra ECU in the back. These units now have to be special ordered from most dealers new for big $$ (often times over $1000!), and you can never find one when you need one. Even now finding a good one second hand is getting to be quite difficult as these cars get older.