Holley Sniper O2 sensor

[Tommy Shumpert]

So, O2 went out this morning and the cheap replacement didn’t work.

Can someone give me good replacement O2 sensor models that replace the Holley one.

Thanks!

 

[Jdc1]

So, O2 went out this morning and the cheap replacement didn’t work.

Can someone give me good replacement O2 sensor models that replace the Holley one.

Thanks!

I’ve used the Bosch- Local Parts Store was able to match up.

Summits shipping is pretty quick-

Pardon Our Interruption

 

[rlong]

Everyone regardless of vehicle sez only use Bosch.. Bosch literally is behind all modern efi systems. They wrote the book on efi.

 

[cstav86]

Bosch 17025
How long did the previous O2 sensor last?
May want to check if you have any exhaust or intake leaks. Even tiny ones can screw this system up and make your system eat O2’s.
Also mine likes the factory air cleaner. Had the little donut style that sits on top and it didn’t like it. Weird and makes no sense but works for mine.

 

[Gotta40]

no idea on what works with holley, but on hondas we only use ntk or nippendenso

 

[Tommy Shumpert]

Replaced O2 sensor and it’s doing the exact same thing.
Starts just fine, runs for 30sec or so and the ARF A/F signal goes to like 30 and dies.
You can start it right after and does same thing.

 

[Jdc1]

Replaced O2 sensor and it’s doing the exact same thing.
Starts just fine, runs for 30sec or so and the ARF A/F signal goes to like 30 and dies.
You can start it right after and does same thing.

Just had the same thing happen on two different 2F- one turned out to be a dud ignition module in the DUI distributor and the other was fuel pressure related.

 

[Tommy Shumpert]

Just had the same thing happen on two different 2F- one turned out to be a dud ignition module in the DUI distributor and the other was fuel pressure related.

I will give the module a shot, this has gone out on me before. Hope it’s that, I didn’t put a fuel pressure gauge on my system so maybe it’s time to eliminate that. Thanks

 

[Jdc1]

I will give the module a shot, this has gone out on me before. Hope it’s that, I didn’t put a fuel pressure gauge on my system so maybe it’s time to eliminate that. Thanks

I dont know if Id just swap it, seems to be a weird batch floating around- theres a test on Davis' FAQ. Watch the voltage at crank too.

 

[knuckle47]

I missed these posts but I have a spare Bosch 17025 in the truck in case. So far, I have no issues and it’s almost 2 years now. When I did have a DUI I also carried a spare module, cap and rotor. Now with the Hyperspark I don’t think I could ask for any better. Also using the factory air cleaner. Is there a test of any kind for the O2 sensor?

EDIT: Forgot to add. I am using a fuel pressure gauge with a T at the base of the throttle body. On the third Earl’s gauge…the first died, the second popped a leak of the viscous fluid in the gauge…the third seems ok and they all always showed a very nice 58lbs pressure