i have a 97 civic 4dr with a obd2 b16 and i have a check engin light on but when i plug my code reader in it says ecu link error and wont link with the ecu is their any other way to find out what codes are present?? and i had vetech and now i have nothing i dont get it can anyone help me out its getting aggervating.. thanks for ur help.

 

Read: http://phearable.net/tech/mil/readcodes.html

 

i got a question about my ecu...recently, i was using a p28 set up with an s300, then i got my orginal ecu which is a p72 with the newer s300...i see a difference when vtec pops with this p72...not a good difference. i cant feel or hear vtec pop anymore. but with the p28, i felt and herd the difference. is that because the p28 was tuned to certain specifications? or is it because im using a p72 on a b16a motor?

 

You shouldn't "feel" vtec "POP" on a properly tuned car.
It should be a smooth transition between the low & high cam creating a clean powerband.

The phenomenon you are describing has nothing to do with the ecu models, but with the calibration on the s300.

 

oohhh ok, i understand. so i have to tune my s300 basically. or at least get it tuned. thanks alot for the help.

 

ok its says top dead center and knock sensor. i have a p2t ecu ive changed ecu's didnt fix it. then i changed distibutors, worked for the first run then back to not working. any ideas??