excited, new catless pipes + dismounting ecu

[Andym3100k]

Originally Posted by Used2be

This is not the case if Andy is correct with his mention of the fuel mixture climbing all the way to 10:1 or richer, and that causing the misfire. If that is the case the high pressure fuel pump is able to keep up obviously, and just a rewrite of the code should be able to correct things.

Yup I would think so......

[MCarsFan]

Originally Posted by Used2be

This is not the case if Andy is correct with his mention of the fuel mixture climbing all the way to 10:1 or richer, and that causing the misfire. If that is the case the high pressure fuel pump is able to keep up obviously, and just a rewrite of the code should be able to correct things.

Correct. A re-write of the code will sort this out. I'm not saying there is a problem with the fuel pump. I'm saying the coding needs to be addressed.

[Used2be]

Originally Posted by MCarsFan

So the same issues have appeared it sounds like. WOT causes dtmal, limp mode, misfire on cylinders..fuel starvation issue..

I just misunderstood your statement. You attribute the fuel starvation to coding, not any mechanical issues? Andy has it as a rich misfire, no lack of fuel, that was my point.

[MCarsFan]

Originally Posted by Used2be

I just misunderstood your statement. You attribute the fuel starvation to coding, not any mechanical issues? Andy has it as a rich misfire, no lack of fuel, that was my point.

Yes, I agree with you. What I find concerning about this is I have spoken to a lot of members who have the more agressive tune with down pipes and almost every person seems to be trying to deal with the same issues. Dtmal, limp mode, engine misfire attribitable to fuel starvation. Ironically some of the tuners imply that the issue is not with everyones cars but just theirs.

I'm no statistician but the sample size of this forum seems to be statistically significant to prove that these are not isolated cases: