| Author |
Message |
Frank (Fjt)
Junior Member
Username: Fjt
Post Number: 66
Registered: 10-2002
| | Posted on Wednesday, December 18, 2002 - 7:41 pm: | |
Thanks. You have been extremely helpful.
I was just on Caspers website. Which one would I order? They have many and are plugs are different? |
JRV (Jrvall)
Member
Username: Jrvall
Post Number: 433
Registered: 11-2002
| | Posted on Wednesday, December 18, 2002 - 7:27 pm: | |
Frank, Found the following, which includes the phone # of the outfit that makes the simulators.
Caspers Electronics (847-247-0484)
For high grade 316 stainless 18x1.5mm threaded weld-on 02 sensor bungs I recommend contacting JGM Automotive Tools (714-895-7001) and ordering p/n TR-18 (cost $12.60 each). They also sell 316 stainless plugs with copper washers to plug the bungs if you ever want to move the 02 sensors to the exhaust manifolds like I have. Another quick and inexpensive source for bungs would be to obtain an 18x1.5mm stainless nut from the hardware section at a local marine store or from Totally Stainless (800-767-4781).
You will need to take the pipes and bungs to a shop where they can be welded. Be sure the shop knows that these parts are stainless steel so they can weld them properly for long life. The bungs are 304 or 316 (austenitic) stainless steel and the pipes are 409 (ferritic) stainless steel. Usually the welding should be done with a MIG or TIG (Inert Gas) welder and a compatible stainless rod. Before welding the bungs in place, it is recommended that you thread in a sacrificial O2 sensor or 18x1.5mm stainless bolt with PLENTY of anti-seize on it as a plug. This will prevent the bung from overheating during the welding process and protect the threads as well. After welding, remove the plug and you should have clean undistorted threads for your O2 sensors to screw into.
Note that '96 vehicles also have rear O2 sensors, which are installed behind the catalytic converters to test whether they are functional or not. We do NOT want to install bungs for those sensors, instead you will need to order a pair of secondary O2 sensor simulators from Caspers Electronics (847-247-0484). These simulators allow the '96 PCM to believe that the secondary O2 sensors are installed and detecting functioning cats or else the PCM will set a trouble code and indicator light. The simulators are
environmentally sealed (potted) with factory connectors attached, you merely plug them into your wiring harness in place of the secondary O2 sensors and use the supplied tiewrap to attach the simulator to a safe place under the car. The secondary O2 sensors themselves are then no longer needed and can be kept as a set of spares to replace the primary sensor later. As a note I recommend replacing O2 sensors on all vehicles at 50K intervals minimum as standard preventive maintenance.
An interesting alternative is available for O2 sensor mounting. The stock exhaust manifolds have O2 sensor bosses (mounting pads) already cast into them which only need to be drilled and tapped with 18x1.5mm threads to accept the sensors. If you did this then you would not have to weld any bungs into your export pipes. On the other hand, a fringe benefit having the bungs in the pipes along with drilled and tapped bosses in the manifold is that it will give you an optional place to install an EGT (Exhaust Gas Temperature) gauge or backpressure test gauge (or both) in the future.
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Frank (Fjt)
Junior Member
Username: Fjt
Post Number: 65
Registered: 10-2002
| | Posted on Wednesday, December 18, 2002 - 7:04 pm: | |
thanks for the info. I will give them a call and keep you posted. Frank |
JRV (Jrvall)
Member
Username: Jrvall
Post Number: 432
Registered: 11-2002
| | Posted on Wednesday, December 18, 2002 - 5:34 pm: | |
Frank, From the gist of the tech info, (I gathered speed reading through it) your tech will still need the original sine wave pattern as we discussed in order to dial the simulator in to the Ferrari pattern. If one of these simulators works out or even if they don't could we get some feedback from you for future reference.
Regards, JRV |
JRV (Jrvall)
Member
Username: Jrvall
Post Number: 429
Registered: 11-2002
| | Posted on Wednesday, December 18, 2002 - 4:36 pm: | |
If the first site doesn't have what you need here are additional resourses that should help:
http://www.yearone.com/serverfiles/section.as
http://www.ecklers.com/dept.asp?dept_id=1127
http://www.mdpp.bigstep.com/generic.html?pid=
http://www.easttraining.com/courses/dso_2.htm
Tech:
http://www.algor.com/news_pub/tech_white_pape
http://www.mt.com/home/products/en/lab/proces
http://www.instantweb.com/f/fmshg-god/
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JRV (Jrvall)
Member
Username: Jrvall
Post Number: 428
Registered: 11-2002
| | Posted on Wednesday, December 18, 2002 - 4:23 pm: | |
After we got off the phone I decided to try and find you a Simulator. Try this link first..if no luck let me know, I'll dig deeper.
Regards, JRV
http://store.summitracing.com/productdetail.asp?p=4811
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Hans E. Hansen (4re_gt4)
Member
Username: 4re_gt4
Post Number: 699
Registered: 4-2002
| | Posted on Wednesday, December 18, 2002 - 3:56 pm: | |
I *think* your existing O2 sensors will screw into a properly made "test" pipe, and function OK. |
Frank (Fjt)
Junior Member
Username: Fjt
Post Number: 64
Registered: 10-2002
| | Posted on Wednesday, December 18, 2002 - 3:52 pm: | |
I am surprised no one has encountered this problem. |
Frank (Fjt)
Junior Member
Username: Fjt
Post Number: 63
Registered: 10-2002
| | Posted on Wednesday, December 18, 2002 - 2:43 pm: | |
Can someone tell me where I could get 02 simulators? I will install tubi test pipes on a 1996 355 5.2 and was told my engine light would come on. I understand this is a solution. Any help would be appreciated. Thanks |