Hey i have a 1997 Mercedes E320 and the check engine electronics is appearing and it runs about 40 mph and it feels like it pulls back like a standard car what could be the problem?

Answer 1

Seems to me like you have symptoms of a bad Engine Control Unit, The ECU directly ties to your emmission system, which controls acceleration, have you tried erasing the fault code with an OBD 2 scanner, pretty simple you could buy this scanner from Ebay for about $80.00. just plug it above your pedals, message gone and will also give you a code, if your ECU is bad, then you will have to replace the ecu, Get the part # from the dealer of the ECU, buy it from Ebay for about $200.00 replace it, erase message again with scanner. save a bunch of $ Seems to me like you have symptoms of a bad Engine Control Unit, The ECU directly ties to your emmission system, which controls acceleration, have you tried erasing the fault code with an OBD 2 scanner, pretty simple you could buy this scanner from Ebay for about $80.00. just plug it above your pedals, message gone and will also give you a code, if your ECU is bad, then you will have to replace the ecu, Get the part # from the dealer of the ECU, buy it from Ebay for about $200.00 replace it, erase message again with scanner. save a bunch of $