ABTJ

Hi all, so update here: It went back to lexus and received a new oxygen sensor. I thought amazing, they took it on a test drive and all was well. So I picked it up, drove it home all was well. The next day I start it, drive 5 mins, and the check engine light comes on again and starts missfiring badly. It now seems that it’s only occuring when the engine is warm, but also the degree of the missfire isn’t constant and does it sometimes, other times it’s okay. Oh and it still reeks of petrol when you rev it and when you start it cold. I ran some diagnostics and received the attached. Mainly all sensors throwing codes, however this was not the case before it went in to have the starter motor. So it’s definitely something which has happened while the starter was being replaced. I’m just at an end now and wondering if anyone has any ideas what the problem can be as this Lexus dealer is f*****g useless. Many thanks all, any help is appreciated.

Due to the garage being closed on the weekend I am about to call them now, however I’ve started it up this morning to begin pulling the codes, because Lexus (UK) anyway can’t read there own car 😕 And it absolutely reaks of unburnt petrol, it is a roughly 25 min, 15 mile drive to the garage, do you think this would be safe? many thanks.

Hi all, I’m aware misfires have been covered many times on lots of forums on these cars, however I’m stumped even after hours of searching. Mine is a 1996 model, I’ve not owned the car for long, however it had full Lexus service history untill 2011, then was serviced by hand by the previous owner, allegedly. The car was running fantastic, I did 500 miles no problem, apart from a slightly less enthusiastic starter motor, which after signs of giving up finally did, at a Lexus dealership. They quoted me a fairly reasonable price after some resurch, and decided it was above my skill level. This is day 2 of having the car back, I did 30 miles no problem, but then a problem started occurring with it misfiring under hard acceleration at around 5k rpm. This has now got much worse, and at medium throttle around 2k-2.5k rpm it splutters, but if you give it a bit more it runs smoothly untill around that 5k mark. There is a check engine light which is on 80% of the time also. The car feels slightly rough at idle, and on one start up, it reved itself between 1k-1.5k rpm repeatedly for 10 seconds until I shut it off, then idled normally. Before the starter motor replacement the engine has always been strong and ran smoothly, with no light, untill I got it back. I have a code reader arriving on Sunday which should help diagnosis, but I’m just at an end after waiting for 2 weeks for my car to come back, for it only to run worse than when I gave it in. Any help would be very much appreciated, thanks all!