A buddy of mine works over at a Volvo specialty shop and I asked him about installing new O2 sensors and he said that I wouldn't be necessary since the ones I already have are still working fine. I've heard that installing a new O2 sensors would improve the car performance a bit even if there is nothing wrong with the old ones.
Thanks for any feedback!
O2 Sensors
Started by VAVolvo, Oct 27 2004 01:54 AM
5 replies to this topic
#1
Posted 27 October 2004 - 01:54 AM
Boosting B5254 854 GT
12sec '89 740 Turbo Wagon
12sec '89 740 Turbo Wagon
#2
Posted 27 October 2004 - 02:12 AM
how many miles do you have on them?
99 C70 5sp
- Full Vms long block
-ARP Head Stud Kit
-Custom Intake Manifold
-Custom Tubular Manifold
-Garrett GT3071R Turbo 18-30psi
-Tial 38/40mm External Gate
- Front mount intercooler W/Custom Pipe
- Hhs Ssq Bov
- Walbro 255lph pump
- RC 550cc Injectors
- -8AN Braided fuel lines
- Rica custom Tuning
VolvoMotorSports
#3
Posted 27 October 2004 - 02:27 AM
QUOTE(ROB @ VMS @ Oct 26 2004, 10:12 PM)
If they haven't been replaced before, I have 140k. If they have, I'd have to check with the previous owner...he took very good care of the car...but let's just assume he didn't.
Boosting B5254 854 GT
12sec '89 740 Turbo Wagon
12sec '89 740 Turbo Wagon
#4
Posted 27 October 2004 - 02:33 AM
I say replace them...Almost guarantee you will see an improvement in mileage. And if you don't see any gain in any way whatsoever at least you have the peace of mind that they are fresh
#5
Posted 27 October 2004 - 04:00 AM
QUOTE(Mesoam @ Oct 26 2004, 10:33 PM)
I say replace them...Almost guarantee you will see an improvement in mileage. And if you don't see any gain in any way whatsoever at least you have the peace of mind that they are fresh 
True. Once I'm done with the suspension upgrades, I'll look into it.
Boosting B5254 854 GT
12sec '89 740 Turbo Wagon
12sec '89 740 Turbo Wagon
#6
Posted 27 October 2004 - 04:02 AM
140k miles...replace them!

















