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Hey guys, I have a 99 rx300 with around 160,000 miles on it. The car had a CEL on for a while for the catalytic converter inefficiency but just had the water pump, timing belt and alternator replaced because it was starting to make some noise. I got the car back and it drove ok but when coming to a stop it seems to want to stall out sometimes and sitting in traffic it idles around 500rpm. I brought the car back and nothing was wrong to them so I brought it to autozone to double check the codes (expecting the catalytic code).
it ended up having 3 codes
-p1133: air/fuel sensor circuit resolution,bank 1 sensor 1
- p1315: igniter circuit malfunction, bank 4
-b2798: communication malfunction number 2
I looked up each but is it possible for these to be caused by an improperly installed timing belt/water pump, or alternator?
The car car never wanted to stall before the shop did the job