| Slant Six Forum https://slantsix.org/forum/ |
|
| Which O2 sensor? https://slantsix.org/forum/viewtopic.php?t=13039 |
Page 1 of 1 |
| Author: | Slant Cecil [ Thu May 19, 2005 2:38 pm ] |
| Post subject: | Which O2 sensor? |
I picked up a budget priced A/F gauge today and ordered a 14mm O2 weld bung to install in my '84 D100. The 3 wire is the way to go, correct? What is a dependable brand and what auto application do I ask for to get what I need? Does the bung weld in at a 90*, pointed towards exh flow or pointed away from exh flow? Any tips? Am I overlooking anything? |
|
| Author: | Super6 [ Thu May 19, 2005 3:03 pm ] |
| Post subject: | |
I used Bosch one-wire O2 sensors with "generic" wire ends (IE no brand specific connector on the end of the wire, just a generic insulated female spade terminal) I went the one-wire route for one simple reason: less wiring to go wrong. My O2's don't take long to heat up. (Maybe 30-45 seconds) My O2 bungs are welded perpendicular to the pipe, just past the header collector on the exhaust pipe itself. O2 sensors straight in (90* to direction of flow). The only tip I really have to offer is to purchase a few feet of 1/4" silicon tubing, slice it lengthwise, and use it to protect the first foot or so of wiring exposed to the heat of the exhaust system. -S/6 |
|
| Author: | Dart270 [ Thu May 19, 2005 6:18 pm ] |
| Post subject: | |
Ram has it right. I wouldn't bother with a heated (3 or 4 wire) for the extra cost. Weld the bung so it's perpendicular to flow. You'll like it for tuning. I was skeptical at first, but it does save some tuning time, even with a carb. Lou |
|
| Author: | SlantSixDan [ Thu May 19, 2005 7:06 pm ] |
| Post subject: | |
The only reason to consider a heated O2S is if your sensor port is far enough downstream that the sensor cools down at idle/low speeds and stops giving accurate readings. |
|
| Author: | Slant Cecil [ Fri May 20, 2005 11:58 am ] |
| Post subject: | |
Ok, thanks guys. One wire it is. I still have the stock exh manifold, an installation a few inches from the flange should still be a hot spot. |
|
| Author: | Dart270 [ Fri May 20, 2005 12:06 pm ] |
| Post subject: | |
That should still be a very hot spot. Lou |
|
| Author: | sandy in BC [ Fri May 20, 2005 3:41 pm ] |
| Post subject: | |
I have single wire O2 sensors in a couple of applications including past the collector of Loooong tube headers. In order to not screw up the ceramic coating I have it in the reducer on the drivers bank. It warms up in less than a block even in the winter. I found it lasted longer there. When the sensor was too close to the head we routinely melted it while towing up long mountain grades. ( I keep a spare in the glove box.) |
|
| Author: | Pierre [ Fri May 20, 2005 9:31 pm ] |
| Post subject: | |
Just as an fyi for those who care - generic sensors tend to be more expensive then application specific. Don't ask me why.... ie, went to napa few days ago. 4 wire o2 bosch sensor generic = $95, 1995 corvette 4 wire sensor (same thing w/gm connector at end) = $50, so something you folks may want to watch out for if your looking for heated sensors. |
|
| Author: | james longhurst [ Sat May 21, 2005 2:45 am ] |
| Post subject: | |
i have used the one-wire bosch o2 sensors and work fine. i think i paid 10 bucks each for them. i have also run one wire sensors from early feedback-carb honda civics (@83-85) and worked great too, plus those were free! -james |
|
| Author: | Dartvader [ Sat May 21, 2005 10:41 am ] |
| Post subject: | |
My Dart has a Bosch four wire O2 sensor from Napa for a Chrysler Lebaron. It cost $60. That extra $35 is known as the "Corvette" tax. I have a '95 Corvette in addition to my Darts, and the Corvette tax runs through everything sold for that car. I used the four wire because I had a '95 Lebaron and knew the number for the part. I probably would still chose to go the four wire route just out of obsessive compulsive paranoia. |
|
| Author: | Pierre [ Sat May 21, 2005 2:28 pm ] |
| Post subject: | |
Dart, the 4 wire corvette sensor was $50. The generic 4 wire (no connecter, just plain uncrimped wire ends) was $95. Buy the cheaper corvette or in your case lebaron sensor, chop off the connecter, and voila you have a generic sensor thats cheaper. I have to use a heated sensor not out of paranoia but necessesity because my sensor is about even with the transmission housing, and running clifford shorty headers. |
|
| Author: | john gov. [ Sat May 21, 2005 5:52 pm ] |
| Post subject: | |
What is the 02 sensor for? Could this be why my 85, D100 Dodge pickup runs like crap when she warms up? /six, single barrel, automatic. John Gov. |
|
| Page 1 of 1 | All times are UTC-08:00 |
| Powered by phpBB® Forum Software © phpBB Limited https://www.phpbb.com/ |
|