nasty cold starts after header install

[Allistaire]

Since putting on my new pacemakers i have had the check engine light on and when starting from cold the car starts rough and it nearly dies but once the car is warmed up its good . Talked to.the exhaust place they said they will send the car to holden after easter . Car is new only.6000 kms

 

[Not_An_Abba_Fan]

The extractors would have affected the way the O2 sensors read, and possibly contaminated them when the coating burned off the extractors.

Holden will tell you the O2 sensors will need replacing.

 

[Allistaire]

All sorted , the Oxygen sensor extension cable on the right side was plugged in the wrong way round, Changed it got the codes reset all good. Actually going heaps better now