Check Engine Light When on Freeway

[I_love_my_TSI]

Hey Fellas !! My car runs fine on daily street driven, But when I get on the freeway and drives for about 30 minutes to 1 hour 70 mph, the Check Engine lights comes on and then the engine starts to bogg like losing power, I also notice now that my car is slowly over heating but when I get off the freeway ..everythings seems to be fine..This is driving me nutss!!! Please Help with any ideas thanks.

 

[c5chris]

Have somebody run an OBD test on your car. I have an OBDII so I can't help you in this department. Your CEL could be alot of things.

Mine always burned plugs till I switched to BPR7ES.

 

[I_love_my_TSI]

thanks for the reply ..No I have not got a OBD test..Today my car is begining to overheat . I think that's the problem. I going to change my thermostat. And see what happens next

 

[OWGTI]

A bad thermostat would give you a CEL. A bad coolant temperature sensor would. Are you SURE your car is overheating as opposed to the sensor being bad? You need to find out what code your ECU has thrown before changing ANY parts.

Later
Arnie

 

[IamCool]

wheres the coolant temperature sensor?

 

[olmytsi]

by the way 95s are OBD2 as well.

 

[c5chris]

If it's OBDII, I have a code reader. If youre around the Fullerton area/Chino Hills I'll pull a code for ya.