i have replaced ecu and o2 sensors check engine light is back on. car is running bad a lot of hesitation at the start and then it just kicks in. does anyone have any suggestion

 

Why in the world did you replace your ECU? How much did that cost???

Do you have a check engine light on?? Have you been by autozone to get it scanned?

Jonny

 

never to autozone total the cost was 2300.00 they replaced that and some o2 sensors. i believe it was the engine ecu. it had to do something with the fuel sensors. the car hesitates then gets alot of power what do you think