I am using a (4) wire O2 sensor. The sense and ground are shielded (White and Black) and the heater has its own power and ground. Which pin on the DB37 connector should I ground the Black shielded wire to?
Thanks for any help.
(4) wire O2 sensor
Forum rules
Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0).
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0).
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
(4) wire O2 sensor
1970 Honda N600 600cc Twin
-
kjones6039
- Master Squirter
- Posts: 618
- Joined: Sat Jul 22, 2006 7:02 pm
- Location: Eureka, Nevada USA
- Contact:
Re: (4) wire O2 sensor
The sensor ground (black) needs to be grounded at one of the sensor returns of the db37. The heater ground should go to the engine (block, head, intake).
Ken
Ken
1979 Corvette - 383 CID SBC w/ Holley Pro-Jection 900 CFM TBI, 4-85 lb lo-z injectors & Walbro 255 pump
MS2 v3 w/ms2extra 3.4.0 Release
36-1, Delphi LS2/7 coils in wasted spark, driven by v2.0 logic board from JBPerformance
Spartan Lambda Sensor from 14point7
MS2 v3 w/ms2extra 3.4.0 Release
36-1, Delphi LS2/7 coils in wasted spark, driven by v2.0 logic board from JBPerformance
Spartan Lambda Sensor from 14point7
Re: (4) wire O2 sensor
Ken; thanks for the help. I have more questions now. The wiring diagrams show pin 19 as a sensor ground for the (2) temperature sensors and the throttle position sensor. This will now be a 4th wire to solder to a 20 gauge pin.kjones6039 wrote:The sensor ground (black) needs to be grounded at one of the sensor returns of the db37. The heater ground should go to the engine (block, head, intake).
Ken
1 How do you physically run the wires?
2 Should I run a 20awg wire from DB37 to a remote isolated posted and than single wires to the various sensors?
3 Also, where do I jumper the shield mesh to ground?
I just found this http://www.DIYAutoTune.com/tech_articles/grounds.html so I maybe have my questions answered.
1970 Honda N600 600cc Twin