Interesting week in the life of the leggy B.. Since Christmas I had an ABS sensor which was playing up and I was waiting for the right time to change it. Then, suddenly on the way to work the other day whilst at part-throttle when the engine was cold I got a loss of power, rough running and a non-responsive throttle pedal. No CEL.
I cycled the ignition and the car fired back up. I drove it to work and back with no problems. High speed, no problem. I got back home and read the codes - total misfire bank 1, multiple misfire cal 1,2+3, pre-cat lambda fault bank 1.
So, I thought this is a good time to do both the ABS sensor as I have to do the bank 1 lambda.
ABS sensors can be a bit of a pain to replace but this one seemed to come out easy enough. Basically its wheel off, calliper and disc off, backing plate off.
Then you get to this point:
From here the best way forward is to get a sharp chisel and a lump hammer and smack the top of it off like so:
Then, whip the little silver cap off that you can see and heat the middle of it up with a blow torch. A magnet pops out and you get a load of copper wire which follows:
Once you get to this bit, keep going with the heat and you'll get another small magnet out. Then you have to dig the plastic cover out from inside the hole.
Then, you're left with the little bolt left on the spacer. I used a Dremel to crack through the aluminium spacer before knocking it off. Then you've got the bolt left there proud:
Heat the housing up with your blow torch, use a bit of WD etc and slowly crack the bolt:
Next, get an Emory cloth into the hole to clean it up, a little bit of spray onto the new sensor and gently tap it in place:
All good, well from that point of view. Little did I know the real problem was yet to come...
I moved onto the lambda sensor. £75 for a Bosch sensor from europarts. The old one came out easy and the new one went in easier! So far so good.
I fired the car up only for it to run very rough, CEL flashing. It was fine when opening the throttle and ran smoothly, but at idle it was shocking.
These were the codes:
The same codes but now the opposite bank!!
Fear not, a trip down to Europarts and another £75 later and I've got another Bosch sensor. Installed with no problem...
Fired the car up and all hell broke loose. Car was trying to shake itself off my lift, revs up and down, no CEL flashing, LOTS of knock heard (like marbles in the exhaust), completely unresponsive throttle.
I tried an ECU reset, battery disconnected and reconnected, throttle reset. No change, nothing.
I'm now left with these codes which will not clear and a car I cannot drive
I've checked for loose ground straps, checked wiring, removed the ECU to check for damage - nothing.
So the only thing I can think of is that the ECU has died. :roll:
I've ordered another one (plus immobiliser and key fobs). Hopefully this sorts it.
If anyone has any suggestions please share them!!
c: