Porsche 944 ECU Up for sale is a Working, in excellent condition Porsche 944 ECU ECU. As with several of the units we have listed on ebay, This unit came from a Porsche specialty shop that used it for diagnostic purposes. - If they had a "no start" come in with a suspected faulty ECU, this was plugged in and runtested. If it ran on this unit, the ECU was replaced. because of this, this unit may have very low actual use mileage. My list shows this should fit many PORSCHE 944 S2 3.0L 88-91 M2.1 0 261 200 458 944 618 124 05 models.. See part numbers at the top of the listing. - . We will offer a 30 day functionality warranty on this unit. You will not find one this nice for cheaper. If you have a nice classic 944, buy from us.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 cars. 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 trunk. 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.