lamda
Up to Engine Tuning
Hi all, Thanks for your offer of a TPS, I found one locally. I have fitted it and I have found that it changed the master fuel from 110 to 95 is that normal or dose it show that the TPS was failing when fitted becauce it was second hand in the first place. The prodlem I have always had, is at light throttle at 100,110 Kph I get a lite cough which is annoying, come to think of it it's there any time there is light throttle. I was woundering if, seeing I'am running with lamda on if I change the default setting 10=100 0n the TPS to 10-say 285 will it give it a finer point of tune as it gives the link Plus more rows to chose from at that light throtle.
Thanks Nick.
Previously Simon (Link Staff) wrote:
Hi Nick
Can I get a bit of a run down on the application,it is often better to use MAP for your row steps.
A change in TP Sensor should not effect the fuelling if it has been spanned the same.
You can span the TPS over a wider range to give more rows and finer resolution.
Hi Simon, this is on My GT40, running 302W, SVO GT40 heads, E303 SVO cam very mild grid just out of road use in Californa std bottum end and balanced and 8 throttle body, manifold from DC&O enginering, nothing to radical
. I have been playing with lamda settings and increased idle from 75 to 84 and cruise 78 to 83 with the mind set as you would use when setting up a carb and looking in the manual where these 2 transition at 3000 RPM on the GT, (diiff ratio are wrong but can't do any thing about it) I think the Link is trying to see 2 tables at the same time and it can't make up its mind, so its transitioning from one table to the other and indoing so it makes a slite cough and so it goes on back and fourth.
But in doing so I think I am over fueling on cold start up, I also fiitted a new O2 sensor as I felt there might be issues there as well, I also had to take master fuel back to up from the 95 I said before to 118, its strange that the other day it would only handle 95, and now 118 and if I go to 119 it's to rich.
Thanks Nick
