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Old 10-20-2002, 01:16 PM
Kyle Blackmore's Avatar
Kyle Blackmore Kyle Blackmore is offline
Mostly Harmless
Join Date: Sep 2001
Location: almost beyond Hope...B.C.
Posts: 897
O2 sensor shorting intermittently

My 88 300CE was having problems passing the emmission testing,I replaced the O2 sensor and it still failed,just.
I replaced the plugs and it didn't make much difference,failed again.I took the car into a local shop,they said it was my injectors.When we picked the car up they said the O2 sensor I installed was shorting and they replaced it.The part was a different number than the one they originally said it needed as well as the one I replaced from the MB dealer.
The sensor I bought at the dealer was Bosch #13925,the one they installed was Bosch # 13130.Are they the same part with a different number?Is there a way to bench-test the 'bad' one?Hopefully the dealer will take it back,or else I'm out $180.I hope someone can help,thanks in advance.
1985 380SE- 160,000km 'Blistu' - Sold
1988 300CE- Eva,my garage mistress
2007 R350 4matic- The Black Pearl
2011 Ford Ranger-Work truck
1974 25' Trojan Sea Raider- 'Grannyknot'
2002 215 cm Atomic DH skis- Canadian SDH record holder, 175.5km/h- Vars 2010
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