hctx01

Hello all ... regarding a 1997 Civic CX hatchback w/190k miles 1.6L AT

Had both axles replaced and within 48 hours had the CELight. Took it to Autozone and KwikKar in the DFW area and both had the same error code of P0135, the Oxygent (O2) sensor needed replacement.

But some friends stated that during the axle replace that the wires could have been loosened or cut. The CEL did not occur immediately but about 30 miles and 48 hours after that axle repair. So, is that scenario possible - that the repair could have loosened the wires??

the error code showed the "upstream" or top sensor as bad, not the "downstream" one near the catalytic converter.

thanks for any advice

MPR

Changing the axles should have no effect at all on the primary (upstream) O2 sensor.

Most likely unrelated, but just happened to come on after changing the axles. A coincidence.

hctx01

thanks MPR... a follow up question.

After AAMCO Transmission changed my axles, the wheel alignment went slightly bad. They said that was a natural result of front end work and to take it to a shop. Since I'm not a car expert, did not argue with them, but instinctively we know that when one problem is fixed - another should NOT arise.

so were they ripping me off? Did they just try to cover up their mistake?

F8i

iTrader: (10)

I can't see how changing the CV Shaft(s) would cause an alignment problem. Possibly your car needed an alignment to begin with?

AS for an O2 Sensor. These can't be soldered back together, I believe the wires are brass. Soldering them back together will throw codes and/or false readings. I believe you can buy the Solder Butt Connectors with the shrink wrap to repair such problems. Or buy a new O2 Sensor.
-B

MPR

Yeah the alignment shouldn't have changed at all from changing the CV joints/axles. The only thing adjustable on the front end of an ek (97) civic is the tow, and there is no reason they would have needed to change that. They only had to remove the tie-rod ends from the hub/spindle assembly. Not adjust them.

What makes you think the alignment is off? (Pulling to one side?)

D.T.P

Alignment shouldnt have been affected. Moreover, usually you dont take tie rod end off for axle job. Just lower bj. So alignnent shouldnt have been affected. Also, it seems qjite hard to knock o2 sensor when replacing driveshafts...but everything is possible when you are careless. Inspect primary o2 for bad wires visually around the axles. Also, i had success with saldering o2 wires. Salder is conductive thus the added resistance is very minimal.