Cold running car bucks on light throttle.
Got a odd issue with a mates Primera, Sr20ve with cvt removed and manual conversion. Running a b13 style ecu and daughter board. Drives fine when warm, but when cold it bucks and kicks on light throttle.
Got to take it out with wideband on tonight and see if i can data log everything and spot what its doing, but it kinda feels like fuel cut? I can adjust this and see what happens. Maps are fairly conventional, but will check where its running and see if its doing anything odd.
Thought it might need more coldstart fuel, but didnt change anything.
Any ideas i can look for while im out?
Got to take it out with wideband on tonight and see if i can data log everything and spot what its doing, but it kinda feels like fuel cut? I can adjust this and see what happens. Maps are fairly conventional, but will check where its running and see if its doing anything odd.
Thought it might need more coldstart fuel, but didnt change anything.
Any ideas i can look for while im out?