Originally Posted by
Ben26
Does that mean less power going to the fuel pump and slowing down the flow just enuff to make it leaner.
Just a random thought !
would make sense, but the fuel pressure stays the same 3 bar at idle
Originally Posted by
mark r
its rich not lean,afr get lower the richer you are
mark
I think he refers to that it goes leaner when I put electrical load on it
Originally Posted by
fraser9764
TPS calibrated correctly?
I think I can rule out the most common sensors, as they are bang on according to my IAW monitor. TPS i have tried several settings between -0.35 to 0.25 degrees.
Lambda shows 20% correction on the IAW at idle, by slowly increasing rpm still have it at 20%. But rapid throttle movements makes it change.
So that tells me that it does adjust the fuel but on idle it cant correct enough - only the "20%"
When starting from cold its really rough splutters and misses. This got me thinking if spark plugs could cause this - if they are too cold or the gap is too small?
I should mention that on boost its perfect