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Hi Have had trouble with my 1999 Nissan Bluebird for the past month now it keeps going into limp mode. We took it to the local garage and they put it on the diagnostic machine and it came back as the oxygen sensor. So that was replaced (now better on gas) but car still going into limp mode not all the time but mainly when you go from reverse to drive it does this. So took it back to the local garage and was put on the diagnostic machine again and then they replaced the speed sensor as it was showing up 5kph when stationary but drove the car this morning and still doing the same limp mode. Really gutless with no power and doesnt shift up. Any ideas what this could be? Local garage have never heard of this before and are stumped. Thanks

Hopefully the local garage is not passing on large invoices for their work and lack of results to date.

The speed sensor replacement does sound like a bit of a stab in the dark to be honest.

To be fair to the garage concerned, these types of jobs can be very frustrating but there does come a time when they should stop and suggest you go elsewhere or recommend another repairer who may have better expertise and knowledge on these sorts of problems.

It’s not a criticism of their overall workmanship it’s more a general comment about repairer’s knowing what their technical limitations are and not exceeding them. By replacing parts on a whim often only ends up costing them and their customers lost time and money.

A call to your local Nissan service dealer or an auto electrician may be worthwhile as a way of trying to find a way forward.

Hi. I have a Bluebird which also did the same. Had everyone stumped too, even the Nissan dealers, which I found a bit hard to believe. Then I needed to put in a new battery and eureka, the problem was solved! It has done this once or twice since, and each time I simply disconnect the battery leads and she's good to go.
Might be worth a try for you anyway. Good luck!
Pam

I suspect what you are doing by disconnecting the battery is cancelling the fault and resetting the engine management computer back to the original factory settings.

Everything will appear to work fine until such time as the engine develops a hick-up (due to a electronic fault which may appear only when a particular driving condition is reached) and the engine drops back to the limp home mode.