Secondary air pump not engaging in my 2004 vw jetta gls

Repairman1031

Newbie
Joined
Jan 5, 2020
Messages
1
Points
1
Make
Volkswagen
Model
Jetta gls 2.0 liter
Year
2094
Miles
90000
Engine
L4 2.0l mfi avh sohc
I've replaced the secondary air pump tested air pump from relay jumped negative side of relay coil to ground and it works while engine is running. The air pump will not come on under normal start /running conditions.could it be a possible sensor (like temp sensor). Any one have any ideas?
 

grcauto

Hero Member
Joined
May 29, 2014
Messages
703
Points
28
What are the required conditions and are they being met?
 
Top