|
|
|
|
| Author |
|
|
Registered
Join Date: Mar 2008
Posts: 47
|
O2 sensor problems
For the 944 Turbo (86): can anyone confirm that there should not be continuity between the black wire on the O2 sensor and the frame (ground)? I'm not getting a reading on my new O2 sensor. The wiring itself is not grounded, but when the DME is plugged back in, an ohm meter zeroes out, indicating a ground where I'm pretty sure there shouldn't be one.
Secondly, can anyone confirm that the white wires on the Bosch 3-wire O2 sensor carry 0V and 12V, and with them disconnected the O2 sensor will work, but only properly after the car has warmed up? Thanks for your help! |
||
03-22-2008, 11:24 AM
|
|
|
Registered
Join Date: Oct 2006
Location: Laguna Vista
Posts: 2,203
|
  It will work without heater wires hooked up but not real well as the heat transfer is un even from the exhaust (the placement of the sensor is the cause) Sox
__________________
"Little problems always come back and bring bigger friends with them". 1986 951"MADDOG" black Dual port WG, 4 port control valve with EBC Last edited by soxnail; 03-24-2008 at 06:43 PM.. |
||
|
03-24-2008, 06:00 PM
|
|
|
Registered
Join Date: Mar 2011
Posts: 16
|
Does this connector just pull apart?
|
||
|
09-06-2021, 05:41 PM
|
|
|
Super Moderator
|
Quote:
 there is a protruding tab on the sensor that lines up and engages with a corresponding hairpin-style clip on the car side. the clip is plastic and usually breaks with age so i've seen owners zip-tie the connector to hold it in place. it looks like sox has a broken clip. an arrow points to the tab on the sensor photo here:
__________________
'89 turbo-s (2.7, wolf3d ems, garrett dbb turbo, tial 46mm, etc. fast!) |
||
|
09-07-2021, 08:56 AM
|
|
