andycb

That sounds very likely. I didn’t personally see it, but from the description of what they removed it sounds like the error code could have just been the bad wiring job more than the sensor. It has a new Bosch one now though.

Is there anything I can look at in the live data from PScan to establish the health of the not-yet-replaced pre-cat sensor?

That’s good to know. According to the garage there has been some amateur electrician work going on with the old one. So. It sure how much of a good idea reusing that one is. Maybe a used one from mgfntfbitz is the best way to go…

Correct. Only the post cat, as that was the only one returning an error. On my way to pick it up now and find out the damage to my wallet, apparently they had a right time trying to get the old one out. I’m getting pretty worried that this is costing more and more.

HI, I need your help.

My 2004 TF has failed its MOT on emissions and I don't know how to get it to pass. I've tried a few things, and I'm rapidly getting to the point its just not worth spending more money on.

The emissions readings gave the following:

CO: 0.000%
HC: 1.4 ppm
Lambda: 1.345

I first tried an Italian tuneup and drive it hard for 30 mins and dropped it off straight into the MOT bay for retest. However, no luck.

The failure is on the Lambda. A scan with Pscan showed an electrical issue with the post cat oxygen sensor. This was replaced by a garage and the code is now gone, but the lambda hasn't come down.

The garage can't find "any obvious issues", and only recommend "sending the car to an ECU specialist".

Any thoughts?

Based on North London.

Thanks for the tip on key programming - Brighton isn't a bad run from here.

The previous owner looked after it quite well - they painted the alloys, I quite like them.

I've done a bit of tinkering, but nothing too major, the throttle was a bit sticky so I spend a little while to oil that and its much better now. I've spend most of my time charging the battery - my own fault, I've got out of the habit with modern cars of remembering to turn the light off when you get out. But I did find that the "lights on" buzzer seems to of failed, I have a replacement MFU sat on the kitchen table that I'll switch over when I have some time.

My next thing, I think is to get a second key. It only came with one (Pektron) and Timspson wanted £249 to make one! So I think I'm about to start my pscan adventure. I work in tech, so I'm kind of up for the idea of plugging a laptop into the car and doing it myself.

Hi everyone,

Just joined with my 2004 TF (Emily) that I've owned for a couple of weeks. London based.

Some old posts here have already helped me out of a couple of tight spots, so I'm pretty happy to be in a community around these cars.

Andy