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AO Silver Member
Join Date: Jun 2008
Location: United Kingdom
I had my 07 159 mapped by angel a few weeks back now and I too have had this issue, its heistant and then suddenly kicks in and goes.
I have a theory about this..... this only occurs when the car is cold, when the car temp guage is off the bottom of the guage and reading warm about 7-8 oclock area and above the car is fine.
Firtsly my wife has a Signum with the 150 engine and this does similar things when cold and is very hesitant to rev when cold, reading the manual, there is a safety feature which does not allow you to rev too high when the engine is cold to protect itself from damage, im pretty sure my 156 all be it a petrol version did the same...
When the map has been done maybe this alters when the boost comes in and then the engines safety feature is fighting the map until the engine has warmed up, with increased power and torque and change of curve perhaps this is the reason this saftey feature the engine has is more noticable than the standard Alfa map...... like i say just a theory, what do you think???