Thanks to the Wreckdiver I got a replacement steering rack for my 5G. It turns out that the problem was actually a combination of a ball joint and worn front hub bearings. (Honda missed it too.)
While I was installing the part I had to take off the B pipe. Not being careful I dropped it and clipped one of the wires on my NTK Primary O2 sensor.
It didn't come off completely and there was no way to fix it as it was right at the point that the wires enter the sensor housing.
Soooo.... I drove the car until it failed.
It failed, of course, at the most inopportune moment.
I ran over to NAPA to see if they had a universal O2 sensor that I could limp by with... and they did:
The part that I was given for the Prelude application is #15734, and the box says Bosch Premium Oxygen Sensor.
It litterally looks just like the NTK one...
What's really suprised me is that my gas milage has increased 20% over the stock NTK and my replacement NTK O2 sensors.
At the half tank of gas I used to see 150 miles. Now, I'm getting 180 miles at the tank (and a little over 340 miles when the needle hits the lowest line [which is not actually empty]).
Normally, I'd stay away from Bosch entirely... but this sensor is (appearance wise) an exact duplicate of the OEM sensor.
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Current rides
2004 Suzuka Blue S2000
Mods:
HKS Intake, J's 60rs, Megan Test pipe, Megan Coilovers, 16" TE37, Shift Beeper, Pre-04 Slave Cylinder
1997 Eucalyptus Green Pearl Prelude Type SH (In progress)
SH to JDM H22 conversion
Mugen header, Greddy EVO Exhaust, AEM Cold Air Intake, Avic D2, OEM Lip
Stuff to do: Suspension (i have knock)
I've seen the OEM replacement Bosch online in the Universal kit form for aobut $70.00. I paid $110 for it at NAPA, but it's always more expensive there.
Daemione:
Actually, that's the weird thing... I replaced the NTK OEM O2 Primary with an NTK aftermarket sensor first.
The one I damaged was the replacement, and it only had about 20k on it (and had always gotten the same as stock O2 gas milage).
The Bosch is my 3rd sensor.
Unlike other Bosch sensors I've seen in the past, this one is actually an exact duplicate (physically) for the OEM NTK.
I get 200-220 miles at the half tank mark and about 400 by the time the light stays on. I have stock O2 sensors with 97k on them. It all depends on the weather and how you drive, even though in your case there might be some evidence that the Bosch O2 sensor is superior. I'm just posting this to let people know that Preludes don't need aftermarket O2 sensors to get good mileage.
Interesting that the Bosch sensor is identical to the OEM NTK one. If you check in my write-up, there's a side-by-side picture of the NTK & NGK . . . they're slightly different.
My highway mileage is basically unchanged (29-30 mpg, 430 miles to the tank if I push it). It's the around town stuff (in & out of closed loop) where I noticed the improvement in fuel efficiency.
Although lately my mileage hasn't been so hot (22-23 mpg around town compared to 24-25 last fall), so I'm not sure what's up with that. Cleaned my air filter last weekend, so we'll see if that helps - it was pretty bad.
But of course, the new sensor cured my low-rpm part throttle hesitation, which is extremely nice. My working theory is that the hesitation was caused by a poopy signal from the O2 sensor, resulting in the ECU not being able to figure out whether it should switch to the open-loop maps or not.
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Originally posted by NotoriouSH I get 200-220 miles at the half tank mark and about 400 by the time the light stays on. I have stock O2 sensors with 97k on them. It all depends on the weather and how you drive, even though in your case there might be some evidence that the Bosch O2 sensor is superior. I'm just posting this to let people know that Preludes don't need aftermarket O2 sensors to get good mileage.
Oh, I agree with you!
The issue really is that the NTK that I put on the car after my first one started throwing codes didn't cause this change in my gas milage.
The Bosch is really quite interesting as it seems to me that an OEM style Bosch O2 sensor has not always been the case. I've seen a bunch of Bosch sensors that are more the european auto design.
Originally posted by Gerhard
Unlike other Bosch sensors I've seen in the past, this one is actually an exact duplicate (physically) for the OEM NTK.
Do you have the model number of the sensor? Also where did you purchase it from?
I suspect my sensor is busted (120k, dont think it was ever changed) and I would like to change it.
Originally posted by Gerhard I ran over to NAPA to see if they had a universal O2 sensor that I could limp by with... and they did:
The part that I was given for the Prelude application is #15734, and the box says Bosch Premium Oxygen Sensor.
Quote:
Originally posted by Gerhard
[B]I've seen the OEM replacement Bosch online in the Universal kit form for aobut $70.00. I paid $110 for it at NAPA, but it's always more expensive there.
Originally posted by NotoriouSH I get 200-220 miles at the half tank mark and about 400 by the time the light stays on. I have stock O2 sensors with 97k on them. It all depends on the weather and how you drive, even though in your case there might be some evidence that the Bosch O2 sensor is superior. I'm just posting this to let people know that Preludes don't need aftermarket O2 sensors to get good mileage.
Ditto
I get around 28-29 mpg on my SS, with a fair amount of freeway driving. Stock O2 sensors with 94,xxx miles on it. However if you do have an O2 sensor going out it can definately kill your milleage, false readings can lead to an overly rich condition.
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im usually going about 80 tho
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