ECM Relearning

[martiy2006]

Tried the whole ECM learning procedure tonight but I'm thinking I may have not done it correctly as when I finished my drive and the car was idling in the garage it seemed like the exhaust was uneven from one side to the other (V8). The left side sounded perfect....but the right side sounded like it was "pulsating" in kind of an irregular fashion. I guess the best way to describe it, is that it was "puffing".

This is my first Lotus, so I'm wondering that maybe I didnt do the procedure right or the ECM is still learning or something like that.

Any comments would be appreciated

Signed Esprit Newbie

[jk1]

martiy2006 said:

Tried the whole ECM learning procedure tonight but I'm thinking I may have not done it correctly as when I finished my drive and the car was idling in the garage it seemed like the exhaust was uneven from one side to the other (V8). The left side sounded perfect....but the right side sounded like it was "pulsating" in kind of an irregular fashion. I guess the best way to describe it, is that it was "puffing".

This is my first Lotus, so I'm wondering that maybe I didnt do the procedure right or the ECM is still learning or something like that.

Any comments would be appreciated

Signed Esprit Newbie

You didn't say why you were doing the re-learn, was there another problem? I'm not that familiar with the V8 but I don't think a re-learn would cause that condition. Check for a plugged catalytic converter caused by the matrix breaking up which is very common on the V8's. Some symptoms of a clogged cat are reduced power and missing. You can usually feel the difference in exhaust pressure by putting your hand over the tailpipe from one side to the other.