Will those Oxygen Sensor fit ?
#17
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My car is a 1996 NB 993 Coupe, all of your other questions are easily answered by looking at prior responses.
#19
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#20
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If the reference O2 level is pulled through the wire harness than possibly an incorrect A/F ratio at certain times (like idling in traffic or driving in reverse)?
#21
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Concerning some of the oxygen sensors being offered for sale as correct fitment for the 993, Bosch part #13723 has a 28.3 inch length overall, far too short for my 1995 993, while #13721 has a 34.3 inch LOA, possible to install, but so tight it can't run through all the retaining clips, so still too short. Further research shows Bosch part #13369, with a 39.4 LOA, to be the correct fitment. Here are some more crossover numbers for Bosch part #13369:
PORSCHE
993 606 126 00
993 606 126 01
AMAZON ASIN
B0049PPVXS
BOSCH
0 258 986 505
13369
31 65142 99191 7
LS 3369
LSH-25W
DAF
1363636
1363636
258003369
MTE-THOMSON
7826.40.104
VDO
A2C59513872Z
PORSCHE
993 606 126 00
993 606 126 01
AMAZON ASIN
B0049PPVXS
BOSCH
0 258 986 505
13369
31 65142 99191 7
LS 3369
LSH-25W
DAF
1363636
1363636
258003369
MTE-THOMSON
7826.40.104
VDO
A2C59513872Z