02-07-2014, 01:50 PM
I would be saying lambda issue too. The 1AP ecu won't read lambda at all until it's warmed up. At that point, it'll read lamba and trim to lambda:1. You can run it with it unplugged, it'll just default the values... same as if you unplug the MAP sensor, it emulates a MAP input based on TPS.
Also, both these motors and the GTi6 motors like to be a bit rich of lambda:1 if they are cammed, you'd normally find a lumpy idle until you get down to about lambda:0.9 - BUT, the ICV should pick up the slack if it's working right.
Have you got / got access to a wideband to check the mixture isn't WAYYY out?
JP
Also, both these motors and the GTi6 motors like to be a bit rich of lambda:1 if they are cammed, you'd normally find a lumpy idle until you get down to about lambda:0.9 - BUT, the ICV should pick up the slack if it's working right.
Have you got / got access to a wideband to check the mixture isn't WAYYY out?
JP
JP
