check engine light while driving

[Kingcof22]

i was driving on the freeway in moderate traffic, and when i shifted from 2nd to 3rd gear my check engine light would flicker on and stay on through acceleration. As soon as I shifted or let off the accelerator the check engine light would go away. RPMS were around 2k-4k. Also, what i mean by flicker is that itll come on, stay on for a couple seconds and then go off. The car drives perfectly, no lurching or stuttering? any idea

 

[Colt4G63 also]

Link is telling you there's knock. Try checking your logs.

 

[Kingcof22]

how do i check that exactly, i bought the car with dsm link but i have none of the programs or a laptop

 

[Colt4G63 also]

ECMlink.com has the software and instructions for free, but you'll need to buy a laptop.

Did the previous owner give you the cable and the membership to the ECMlink forums?

 

[Kingcof22]

hey thanx. ill keep you posted

no, i think i have the cable for it.. but not the membership why?

my dsmlink is not working so i cannot access the logs

 

[Absit]

..How do you know your DSMLink is not working?
The forum membership is invaluable.